| 
							
      					 | 
  					 
  					
    					 | 
   					 
   										
    					Synthesis and fluorescence behavior of 2,5-diphenyl-1,3,4-oxadiazole-containing bismaleimides and bissuccinimides  | 
  					 
  					  										
						Xin ZHANG1( ), Zichen LI2 | 
					 
															
						| 1. University of Wuerzburg, Institute of Organic Chemistry, Am Hubland, 97074 Wuerzburg, Germany; 2. Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, China | 
					 
										
						 | 
					 
				 
				
				
					
						
							
								
									
		
		 
          
          
            
              
				
								                
													
													    | 
													    	
														 | 
													 
													
													
													
														
															
													
													    | 
													     		                            						                            																	    Abstract  Bismaleimides bearing 2,5-diphenyl-1,3,4-oxadiazole chromophores at para, meta, ortho position and corresponding saturated bissuccinimides were synthesized. Several synthetic strategies for these bismaleimides were discussed in detail. Almost no or very weak fluorescence was observed for these bismaleimides, however, the bissuccinimides show a strong fluorescence. The effect of molecular geometry on optical behavior and fluorescence quenching mechanism were investigated by UV-vis absorption and fluorescence emission spectroscopy. The electron coupling of ground state of p-bismaleimide is stronger than those of m- and o-bismaleimides. p-Bissuccinimide displays increasing fluorescence quantum yields with red shifts of 22–24 nm, compared to m-bissuccinimide. Polymerizable C=C bonds play a key role in the intramolecular fluorescence quenching. 
																										     | 
														 
																												
												        														
															| Keywords 
																																																				fluorescence  
																		  																																				bismaleimide  
																		  																																				oxadiazole  
																		  																																				succinimide  
																																			  
															 | 
														 
																												
														 																											    														
															| 
																																Corresponding Author(s):
																ZHANG Xin,Email:xin.zhang@uni-wuerzburg.de   
																													     		
													     	 | 
														 
																																										
															| 
																																																													Issue Date: 05 December 2013
																														 | 
														 
														 
                                                         | 
														 
														 
														
														
														
												 
												
												
                                                    
													
								             
                                             
            
					            
								            								            
								            								                                                        
								            
								                
																																												
															| 1 | 
															 
														     Gandini A. The furan/maleimide Diels-Alder reaction: A versatile click–unclick tool in macro molecular synthesis. Progress in Polymer Science , 2013, 38(1): 1–29  doi: 10.1016/j.progpolymsci.2012.04.002
														     															 | 
																  
																														
															| 2 | 
															 
														     Warman J M, Abellon R D, Verhey H J, Verboeven J W, Hofstraat J W. Maleimido-fluoroprobe: A dual-purpose fluorogenic probe of polymerization dynamics. Journal of Physical Chemistry B , 1997, 101(25): 4913–4916  doi: 10.1021/jp970642h
														     															 | 
																  
																														
															| 3 | 
															 
														     Zhang X, Li Z C, Li K B, Lin S, Du F S, Li F M. Donor/acceptor vinyl monomers and their polymers: synthesis, photochemical and photophysical behavior. Progress in Polymer Science , 2006, 31(10): 893–948  doi: 10.1016/j.progpolymsci.2006.08.009
														     															 | 
																  
																														
															| 4 | 
															 
														     Broyer R M, Grover G N, Maynard H D. Emerging synthetic approaches for protein-polymer conjugations. Chemical Communications , 2011, 47(8): 2212–2226  doi: 10.1039/c0cc04062b
														     															 | 
																  
																														
															| 5 | 
															 
														     Wang B B, Zhang X, Jia X R, Li Z C, Ji Y, Yang L, Wei Y. Fluorescence and aggregation behavior of poly(amidoamine) dendrimers peripherally modified with aromatic chromophores: The effect of dendritic architectures. Journal of the American Chemical Society , 2004, 126(46): 15180–15194  doi: 10.1021/ja048219r
														     															 | 
																  
																														
															| 6 | 
															 
														     Sahoo M K, Mhaske S B, Argade N P. Facile routes to alkoxymaleimides/maleic anhydrides. Synthesis , 2003, 7(4): 346–349 
														     															 | 
																  
																														
															| 7 | 
															 
														     Corrie J E T, Munasinghe V R N, Rettig W. Synthesis and fluorescence properties of substituted 7-aminocoumarin-3-carboxylate derivatives. Journal of Heterocyclic Chemistry , 2000, 37(6): 1447–1455  doi: 10.1002/jhet.5570370608
														     															 | 
																  
																														
															| 8 | 
															 
														     Wu H P, Aumann R, Frohlich R, Wibbeling B, Kataeva O. Highly selective formation of [4+2] and [4+3] cycloadducts of tetrahydroindenes generated in situ from a (1-alkynyl)carbene tungsten complex by the metalla-1,3,5-hexatriene route. Chemistry (Weinheim an der Bergstrasse, Germany) ,  2001,  7(23):  5084–5093  doi: 10.1002/1521-3765(20011203)7:23<5084::AID-CHEM5084>3.0.CO;2-H
														     															 | 
																  
																														
															| 9 | 
															 
														     Gousse C, Gandini A. Diels–Alder polymerization of difurans with bismaleimides. Polymer International , 1999, 48(8): 723–731  doi: 10.1002/(SICI)1097-0126(199908)48:8<723::AID-PI200>3.0.CO;2-#
														     															 | 
																  
																														
															| 10 | 
															 
														     Nicolaou K C, Zhong Y L, Baran P S, Jung J, Choi H S, Yoon W H. Completion and synthesis of advanced analogs. Journal of the American Chemical Society , 2002, 124(10): 2202–2211  doi: 10.1021/ja0120126
														     															 | 
																  
																														
															| 11 | 
															 
														     Zhang X, Li Z C, Li K B, Du F S, Li F M. Multi-maleimides bearing electron-donating chromophores: Reversible fluorescence and aggregation behavior. Journal of the American Chemical Society , 2004, 126(39): 12200–12201  doi: 10.1021/ja0487527
														     															 | 
																  
																														
															| 12 | 
															 
														     Du F S, Li Z C, Li F M. Vinyl monomers bearing chromophore moieties and their polymers. VIII. Synthesis and fluorescence behavior of a vinyloxy monomer having an electron-accepting chromophore moiety, p-((vinyloxy)methyl)benzonitrile, and its polymers. Journal of Polymer Science. Part A, Polymer Chemistry , 1999, 37(2): 179–187  doi: 10.1002/(SICI)1099-0518(19990115)37:2<179::AID-POLA8>3.0.CO;2-4
														     															 | 
																  
																														
															| 13 | 
															 
														     Tanaka F, Thayumanavan R, Barbas C F. Fluorescent detection of carbon–carbon bond formation. Journal of the American Chemical Society , 2003, 125(28): 8523–8528  doi: 10.1021/ja034069t
														     															 | 
																  
																														
															| 14 | 
															 
														     Girouard S, Houle M H, Grandbois A, Keillor J W, Michnick S W. Synthesis and characterization of dimaleimide fluorogens designed for specific labeling of proteins. Journal of the American Chemical Society , 2005, 127(2): 559–566  doi: 10.1021/ja045742x
														     															 | 
																  
																														
															| 15 | 
															 
														     Miller C W, Jonsson E S, Hoyle C E, Viswanathan K, Valente E J. Evaluation of N-aromatic maleimides as free radical photoinitiators: A photophysical and photopolymerization characterization. Journal of Physical Chemistry B , 2001, 105(14): 2707–2717  doi: 10.1021/jp002811v
														     															 | 
																  
																														
															| 16 | 
															 
														     Trost B M, Kallander L S. A versatile enantioselective strategy toward L-C-nucleosides: A total synthesis of L-Showdomycin. Journal of Organic Chemistry , 1999, 64(15): 5427–5435  doi: 10.1021/jo990195x
														     															 | 
																  
																														
															| 17 | 
															 
														     Cheng S H, Hsiao S H, Su T H, Liou G S. Novel aromatic poly(amine-imide)s bearing a pendent triphenylamine group: synthesis, thermal, photophysical, electrochemical, and electrochromic characteristics. Macromolecules , 2005, 38(2): 307–316  doi: 10.1021/ma048774d
														     															 | 
																  
																														
															| 18 | 
															 
														     Wang C, Zhang C, Wang P, Zhu P, Wu W, Ye C, Dalton L R. High Tg donor-embedded polyimides for second-order nonlinear optical applications. Polymer , 2000, 41(7): 2583–2590  doi: 10.1016/S0032-3861(99)00420-6
														     															 | 
																  
																														
															| 19 | 
															 
														     Saegusa Y, Koshikawa T, Nakamura S. Synthesis and characterization of 1,3,4-oxadiazole-containing polyazomethines. Journal of Polymer Science. Part A, Polymer Chemistry , 1992, 30(7): 1369–1373  doi: 10.1002/pola.1992.080300715
														     															 | 
																  
																														
															| 20 | 
															 
														     Reddy P Y, Kondo S, Fujita S, Toru T. Efficient synthesis of fluorophore-linked maleimide derivatives. Synthesis , 1998, 8(9): 999–1002  doi: 10.1055/s-1998-2097
														     															 | 
																  
																														
															| 21 | 
															 
														     Conley N R, Hung R J, Willson C G. A new synthetic route to authentic N-substituted aminomaleimides. Journal of Organic Chemistry , 2005, 70(11): 4553–4555  doi: 10.1021/jo048031q
														     															 | 
																  
																														
															| 22 | 
															 
														     Fruk L, Graham D. The electronic effects on the formation of N-arylmaleimides and isomaleimides. Heterocycles , 2003, 60(10): 2305–2313  doi: 10.3987/COM-03-9843
														     															 | 
																  
																														
															| 23 | 
															 
														     Ivanov D, Constantinescu M. Computational study of maleamic acid cyclodehydration. Journal of Physical Organic Chemistry , 2003, 16(6): 348–354  doi: 10.1002/poc.639
														     															 | 
																  
																														
															| 24 | 
															 
														     Chihab-Eddine A, Daich A, Jilale A, Decroix B. Synthesis and reactivity of (1S)-N-(1-phenylethyl) maleimide towards nucleophiles: An application to preparation of chiral pyrroloisothiochroman and pyrrolobenzo[d]thiepine based on pi-cationic cyclization. Tetrahedron Letters , 2001, 42(4): 573–576  doi: 10.1016/S0040-4039(00)02037-2
														     															 | 
																  
																														
															| 25 | 
															 
														     Clevenger R C, Turnbull K D. Synthesis on N-alkylated maleimides. Synthetic Communications , 2000, 30(8): 1379–1388  doi: 10.1080/00397910008087165
														     															 | 
																  
																														
															| 26 | 
															 
														     Berson J A, Swidler R A. Synthesis of maleimide. Journal of the American Chemical Society , 1954, 76(10): 2835–2836  doi: 10.1021/ja01639a070
														     															 | 
																  
																														
															| 27 | 
															 
														     Hattemer E, Zentel R, Mecher E, Meerholz K. Synthesis and characterization of novel multifunctional high-Tg photorefractive materials obtained via reactive precursor polymers. Macromolecules , 2000, 33(6): 1972–1977  doi: 10.1021/ma990984g
														     															 | 
																  
																														
															| 28 | 
															 
														     Aponte M A, Butler G B. Copolymers containing alternating sequences of nucleic acid-base pairs. I. Monomer synthesis. Journal of Polymer Science. Part A, Polymer Chemistry , 1984, 22(11): 2841–2858  doi: 10.1002/pol.1984.170221110
														     															 | 
																  
																														
															| 29 | 
															 
														     Schwartz A L, Lerner L M. Synthesis and properties of N-(2,3,5-tri-O-acetyl-D-ribofuranosyl) maleimide. Journal of Organic Chemistry , 1975, 40(1): 24–28  doi: 10.1021/jo00889a005
														     															 | 
																  
																														
															| 30 | 
															 
														     King H D, Dubowchik G M, Walker M A. Walker, M. A. Facile synthesis of maleimide bifunctional linkers. Tetrahedron Letters , 2002, 43(11): 1987–1990  doi: 10.1016/S0040-4039(02)00192-2
														     															 | 
																  
																														
															| 31 | 
															 
														     Walker M A. A high yielding synthesis of N-alkyl maleimides using a novel modification of the Mitsunobu reaction. Journal of Organic Chemistry , 1995, 60(16): 5352–5355  doi: 10.1021/jo00121a070
														     															 | 
																  
																														
															| 32 | 
															 
														     Berlin Y A, Hutchison G R, Rempala P, Ratner M A, Michl J. Charge hopping in molecular wires as a sequence of electron-transfer reactions. Journal of Physical Chemistry A , 2003, 107(19): 3970–3980  doi: 10.1021/jp034225i
														     															 | 
																  
																														
															| 33 | 
															 
														     Mataga N, Kaifu Y, Koizumi M. Solvent effects upon fluorescence spectra and the dipole moments of excited molecules. Bulletin of the Chemical Society of Japan , 1956, 29(4): 465–470  doi: 10.1246/bcsj.29.465
														     															 | 
																  
																														
															| 34 | 
															 
														     Von Lippert E Z. Spektroskopische Bestimmung des Dipolmomentes Aromatischer Verbin- dungen im Ersten Angeregten Singuletzustand. Electrochemistry , 1957, 61(9): 962–975 
														     															 | 
																  
																														
															| 35 | 
															 
														     Lakowicz J R. Principles of Fluorescence Spectroscopy, 2nd ed. Plenum Press: New York, 1999, 192
														     															 | 
																  
																														
															| 36 | 
															 
														     Kanaoka Y, Machida M, Ando K, Sekine T. N-(1-Anilinonaphthyl-4)maleimide: A fluorescent hydrophobic probe directed to thiol groups in protein. Biochimica et Biophysica Acta , 1970, 207(1): 269–277  doi: 10.1016/0005-2795(70)90019-X
														     															 | 
																  
																														
															| 37 | 
															 
														     Verhey H J, Bekker C H W, Verhoeven J W, Hofstraat J W. A fluorogenic charge-transfer polarity probe for the derivatisation of thiols and amines. New Journal of Chemistry , 1996, 20(7-8): 809–814 
														     															 | 
																  
																																										 
								             
                                             
								                                                        
                                            
                                            
								                                                        
                                            
                                            
                                            
								            
												
											    	
											        	 | 
											        	Viewed | 
											         
													
											        	 | 
											        	 | 
											         
											      	
												         | 
												        
												        	Full text 
												          	
												         | 
											        	
												        	
												        	 
												        	
												          	 
												          	
												          	
														 | 
													 
													
												         | 
												         | 
													 
													
												         | 
												        
												        	Abstract 
												          	
														 | 
												        
															
															 
															
															
												         | 
													 
													
												         | 
												         | 
													 
													
												         | 
												        Cited  | 
												        
												        	
												         | 
													 
													
												         | 
												         | 
												         | 
													 
													
													    |   | 
													    Shared | 
													       | 
												  	 
												  	
													     | 
													     | 
													     | 
											  		 
											  		
													    |   | 
													    Discussed | 
													       | 
												  	 
											 
											 
								         
                                        
  
									 | 
								 
							 
						 | 
					 
				 
			
		 |