87732-47-6

Basic information

• Product Name: 1,4-Dihydro-1-(4-methylphenylsulfonyl)-4-<(4-methylphenylsulfonyl)phenylmethylen>pyridin
• Synonyms: 1,4-Dihydro-1-(4-methylphenylsulfonyl)-4-<(4-methylphenylsulfonyl)phenylmethylen>pyridin
• CAS NO: 87732-47-6
• Molecular Weight: 477.605
• Mol File: 87732-47-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1,4-Dihydro-1-(4-methylphenylsulfonyl)-4-<(4-methylphenylsulfonyl)phenylmethylen>pyridin(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Dihydro-1-(4-methylphenylsulfonyl)-4-<(4-methylphenylsulfonyl)phenylmethylen>pyridin(87732-47-6)
• EPA Substance Registry System: 1,4-Dihydro-1-(4-methylphenylsulfonyl)-4-<(4-methylphenylsulfonyl)phenylmethylen>pyridin(87732-47-6)

Safety Data

• Hazardous Substances Data: 87732-47-6(Hazardous Substances Data)

Upstream product

• 87732-48-7 4-<α-(4-methylphenylsulfonyl)benzyl>pyridine 
• 98-59-9 p-toluenesulfonyl chloride 
• 2116-65-6 4-benzyl pyridine 

Downstream Products

• 640-60-8 toluene-4-sulfonic acid phenyl ester 
• 87732-48-7 4-<α-(4-methylphenylsulfonyl)benzyl>pyridine 
• 80-48-8 methyl p-toluene sulfonate 

Relevant articles and documents

1-Acyl-4-alkylidene-1,4-dihydropyridines, 7. Activation with Boron Trifluoride: Intermolecular Acyl Group Transfer and Formation of 1-(4-Pyridyl)-2-alkanones

1-Acyl-4-alkylidene-1,4-dihydropyridines 5, representatives of the thermally stable enamides, can be activated by means of boron trifluoride 6, so the ketones 7 result from attack of 6 on 5 (intermolecular acyl group transfer).The mechanism of this reaction, which has not previously been observed for enamides, is strongly suggested to be as follows: 5 and 6 form first the adduct 21, which attacks 5 with formation of 27.Special examples of 5 (11 and 12) are found to be reactive enough that the ketone 7h or the sulfone 15 can be obtained from their isolable precursors (14 and 13) without Lewis-acid activation. 13 is particularly noteworthy: being the precursor of the salt 16, which is generated in situ, it serves as an extremely effective tosylating agent.Even tertiary alcohols are attackted by 16.