Citation:
	            
		            Wei Li ZHAO,  Zu Liang DU,  Zi Qiang ZHU,  Lian He YU,  Yang Fu MING,  Mei Gong FAN. SYNTHESIS AND PHOTOCHROMIC BEHAVIORS OF 1-LONG HYDROCARBON CHAIN SUBSTITUTED PYRRYL FULGIDES[J]. Chinese Chemical Letters,
							;1995, 6(7): 573-576.
						
				
					 
				
	        
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	                	Three 1-long hydrocarbon chain substituted pyrryl fulgides, (2, 4-dimethyl-1-hexadecyl-5-phenyl-3-pyrryl)-ethylidene(isopropylidene)succinic anhydride(1E), (2, 4-dimethyl-1-octadecyl-5-phenyl-3-pyrryl)-ethylidene(isopropylidene)succinic anhydride(2E)and(2-methyl-1-(p-octadecoxyphenyl)-5-phenyl-3-pyrryl)-ethylidene(isopropylidene)succinic anhydride(3E)were synthesized.Their photochromic behaviors were also investigated.Compound 3E was obtained in much higher yield(41.7%)than others with an improved procedure.
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