87625-87-4

Upstream product

• 39082-53-6 1,1-bis(phenylsulfonyl)ethylene 
• 67-64-1 acetone 
• 123-54-6 acetylacetone 
• 3406-02-8 bis(phenylsulfonyl)methane 
• 78-94-4 methyl vinyl ketone 

Downstream Products

• 197917-30-9 6,6-bis(phenylsulfonyl)-3-methyl-1-hexen-3-ol 
• 197917-31-0 (E)-5,5-Bis-benzenesulfonyl-2,8-dimethyl-deca-2,9-diene-1,8-diol 
• 197917-33-2 Acetic acid (E)-8-acetoxy-4,4-bis-benzenesulfonyl-1,7-dimethyl-1-vinyl-oct-6-enyl ester 
• 197917-49-0 6,6-bis(phenylsulfonyl)-3-methyl-3-trifluoroacetyloxy-1-hexene 
• 259879-67-9 6,6-bis(phenylsulfonyl)-3-methyl-2-hexen-1-yltrimethylsilane 
• 259879-68-0 3-acetyloxy-6,6-bis(phenylsulfonyl)-3-methyl-1-hexene 

Relevant academic research and scientific papers

1,1-BIS(BENZENESULFONYL)ETHYLENE: A USEFUL SYNTHON FOR NEUTRAL HOMOLOGATION OF KETONES

1,1-Bis(benzenesulfonyl)ethylene (1) is a versatile building block in organic synthesis since it reacts under neutral conditions with enolizable ketones to afford adducts that can be subjected to a variety of synthetic transformations.

Sodium tetramethoxyborate: An efficient catalyst for Michael additions of stabilized carbon nucleophiles

(Chemical Equation Presented) Sodium tetramethoxyborate, easily prepared by reaction of inexpensive sodium borohydride with methanol, possesses a suitable combination of a Lewis base and a Lewis acid to catalyze Michael reactions at room temperature under

Michael reaction of stabilized carbon nucleophiles catalyzed by [RuH2(PPh3)4]

The Michael reaction of active methylene compounds lacking cyano groups such as malonates, β-ketoesters, 1,3-diketones, 1,1-disulfones, nitrocompounds, Meldrum acid, and anthrone with common acceptors proceeds in acetonitrile solution in the presence of [RuH2(PPh3)4] as the catalyst. Cyano acetates, more acidic than malonates in organic solvents, are also excellent substrates for this reaction. In a number of cases, intramolecular aldol reactions catalyzed by [RuH2(PPh3)4] were also observed as side reactions. Catalysis by other ruthenium and rhodium complexes has been examined. Selectivity studies performed with malonate and disulfone donors indicate that the catalyst selectively activates Michael donors that can coordinate with ruthenium(II). Additionally, it has been shown that the reaction requires the presence of free phosphine. Therefore, the Michael reaction of stabilized enolates appears to be a ruthenium- and phosphine-catalyzed reaction. From a practical point of view, the use of readily prepared [RuH2(PPh3)4] as the catalyst in acetonitrile provided the best solution for the Michael reaction of active methylene compounds.

Michael Reactions of 1,1-Bis(benzenesulfonyl) ethene

Some Michael aaddition reactions of 1,1-bis(benzenesulfonyl) ethene are reported.