72863-25-3

Upstream product

• 31378-03-7 1-phenyl-2-tosylethanone 
• 109-67-1 1-penten 
• 824-79-3 sodium 4-methylbenzenesulfinate 
• 111895-34-2 1-phenyl-2-p-tosylpentan-1-one 
• 74829-78-0 1-(p-tolylsulfonyl)-1-pentene 
• 105235-53-8 2-tosyl-1-pentene 
• 74829-78-0 (E)-1-(p-toluenesulfonyl)-pentene 
• 139950-90-6 2-(1-pyrrolidinyl)-1-tosylpentane 
• 112473-02-6 (E)-2-iodo-1-tosyl-1-pentene 
• 627-19-0 1-Pentyne 
• 105465-45-0 1-[2-(Toluene-4-sulfonyl)-pentyl]-pyrrolidine 
• 5535-52-4 tolyl vinyl sulfone 
• 16191-66-5 1-[2-(toluene-4-sulfonyl)-ethyl]-pyrrolidine 
• 344330-47-8 3-Trimethylsilanyl-pent-1-en-3-ol 

Relevant academic research and scientific papers

"Syn-Effect" in the Desilylation Reaction of γ-Silylated Allylic and Vinylic Sulfones

The desilylation reaction of γ-silylated allylic sulfones was found to proceed through γ-silylated (E)-vinylic sulfones to afford the corresponding allylic sulfones by treatment with DBU and H2O. The Z/ E ratio of the resulting allylic sulfones varied according to the γ-substituents of the γ-silylated sulfones. This stereo-chemical outcome was rationalized by "syn-effect".

Stereochemistry of the Conversion of γ-substituted (E)-Vinylsulfones to the Corresponding Allylsulfones. Determination of the Relative Degree of "Syn-Effect"

The relative degree of "syn-effect" for the γ-substituted vinylsulfones in their conversion to the corresponding allylsulfones with 1,8-diazabicycloundec-7-ene (DBU) was determined by observing E/Z ratios of the resulting allylsulfones as follows:

Convenient Methods for the Preparation of Vinylic and Allylic Sulfones from Alkenes, Haloalkanes, and Aldehydes. Stereochemistry of the Conversion of Vinylic Sulfones to the Corresponding Allylic Sulfones

1- or 2-p-Tolylsulfonyl(=tosyl)-1-alkenes, vinylic sulfones, were regioselectively prepared from 1-alkenes via iodosulfonization or sulfonylmercuration and also from 1-haloalkanes by the homologation or unhomologation methods.The vinylic sulfones thus prepared were further converted to the corresponding allylic sulfones under basic conditions.The stereochemistry of this conversion was discussed.One-carbon homologated allylic sulfones were directly obtained from aldehydes in good yields by the reaction with diethyl phenylsulfonylmethylphosphonate and 1,8-diazabicycloundec-7-ene (DBU) under mild conditions.

Regio- and Stereoselective Synthesis of (E)- and (Z)-Vinylic Sulfones and Their Conversion to the Corresponding Allylic Sulfones

(E)- and (Z)-vinilyc sulfones were prepared regio- and stereoselectively from 1-alkenes or 1-alkynes in high yields via iodosulfonization in AcOEt-H2O.The vinylic sulfones thus prepared were converted to the corresponding allylic sulfones by treatment wit

A CONVENIENT METHOD FOR THE PREPARATION OF α-ALKYLATED VINYLIC SULFONES AND THEIR CONVERSION TO ALLYLIC SULFONES

2-Pyrrolidinoalkyl p-tolyl sulfones, which were readily available by the addition of pyrrolidine to vinylic or allylic sulfones, were converted to the corresponding α-alkylated vinylic sulfones through α-alkylation followed by elimination of pyrrolidino g

CONVENIENT METHODS FOR THE PREPARATION OF VINYLIC AND ALLYLIC SULFONES FROM ALKENES

1 or 2-p-Toluenesulfonyl(=tosyl)-1-alkenes were regioselectively prepared from 1-alkenes via iodosulfonization or sulfonylmercuration, respectively.Conversion of 1-tosyl-1-alkenes to the corresponding allylic sulfones, 1-tosyl-2-alkenes, was achieved by t