71512-25-9

Basic information

• Product Name: 4-Pentenoic acid, 2-[(4-methylphenyl)sulfonyl]-, methyl ester
• CAS NO: 71512-25-9
• Molecular Formula: C13H16O4S
• Molecular Weight: 268.334
• Mol File: 71512-25-9.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 4-Pentenoic acid, 2-[(4-methylphenyl)sulfonyl]-, methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Pentenoic acid, 2-[(4-methylphenyl)sulfonyl]-, methyl ester(71512-25-9)
• EPA Substance Registry System: 4-Pentenoic acid, 2-[(4-methylphenyl)sulfonyl]-, methyl ester(71512-25-9)

Safety Data

• Hazardous Substances Data: 71512-25-9(Hazardous Substances Data)

Upstream product

• 455-16-3 p-toluenesulfonyl fluoride 
• 50397-64-3 methyl 2-(p-tolylsulfonyl)acetate 
• 106-95-6 allyl bromide 
• 35466-83-2 allyl methyl carbonate 
• 90083-98-0 sodium methyl(α-p-toluenesulfonyl)acetate 

Downstream Products

• 851762-28-2 2-Allyl-4-methylene-2-(toluene-4-sulfonyl)-dodecanoic acid methyl ester 
• 112778-56-0 2-Allyl-2-(toluene-4-sulfonyl)-pent-4-enoic acid methyl ester 
• 4634-14-4 2-phenylisonicotinic acid methyl ester 
• 1531-16-4 methyl 2-ethylpyridine-4-carboxylate 
• 851762-39-5 4-oxo-2-(2-oxo-ethyl)-4-phenyl-2-(toluene-4-sulfonyl)-butyric acid methyl ester 
• 851762-27-1 2-allyl-4-phenyl-2-(toluene-4-sulfonyl)-pent-4-enoic acid methyl ester 
• 851762-26-0 2-allyl-4-ethyl-2-(toluene-4-sulfonyl)-pent-4-enoic acid methyl ester 

Relevant articles and documents

A [3,3]-sigmatropic process catalysed by acetate. The decarboxylative Claisen rearrangement

Allylic tosylacetates and tosylmalonates undergo acetate-catalysed decarboxylative Claisen rearrangement in the presence of N,O-bis(trimethylsilyl) acetamide. The homoallylic sulfones formed in these transformations correspond to the products of regiospecific allylation of sulfone-stabilised carbanions. A mechanistic rationale is proposed.

Decarboxylative Claisen rearrangement reactions of allylic tosylmalonate esters

(Chemical Equation Presented) Two different combinations of silylating agent and base are used for one-pot [3,3]-sigmatropic rearrangement- decarboxylation reactions of tosylmalonic mono(allylic) esters under mild conditions, providing the products of formal regiospecific allylation of methyl tosylacetate at the more substituted allylic terminus.

Hexacarbonylmolybdenum(0)-Catalyzed Reaction of Allylic Carbonates with Arylsulfonyl-Stabilized Carbanions

p-Tolylsulfonylacetonitrile reacted with allylic carbonates in the presence of a catalytic amount of hexacarbonylmolybdenum(0) to give monoallylated derivatives.Using sodium hydride as a base, methyl p-tolylsulfonylacetate reacted with those to give mixtu