98587-78-1

Upstream product

• 14371-10-9 (E)-3-phenylpropenal 
• 5961-59-1 N-methyl-N-(4-methoxyphenyl)amine 
• 98587-96-3 (4-Methoxy-phenyl)-methyl-[(E)-3-phenyl-prop-2-en-(Z)-ylidene]-ammonium; perchlorate 

Downstream Products

• 114582-44-4 (4-Methoxy-phenyl)-methyl-[(Z)-3-phenyl-prop-2-en-(Z)-ylidene]-ammonium; perchlorate 
• 98587-96-3 (4-Methoxy-phenyl)-methyl-[(E)-3-phenyl-prop-2-en-(Z)-ylidene]-ammonium; perchlorate 
• 114582-26-2 (4-Methoxy-phenyl)-methyl-[(Z)-3-phenyl-prop-2-en-(E)-ylidene]-ammonium; perchlorate 

Relevant academic research and scientific papers

Mechanisms of the Thermal Isomerization about the C=N+ Bond of Some Iminium Salts

The thermal stereomutations of a series of N-aryl 3-arylpropenylidene iminium perchlorate salts have been examined.These salts crystallize as E,E isomers but isomerize thermally about the C=N bond in solution The rates of isomerization (8 9) were measured at 100 deg C in trifluoroacetic acid.A Hammett correlation of the rate constants indicated that two mechanisms operate in the system.The iminium salts with electron-withdrawing substituents react by a nucleophile-catalyzed mechanism, while those with electron-donating substituents isomerize by a protonation mechanism.This latter process was shown to involve protonation on nitrogen.