110355-44-7Relevant academic research and scientific papers
Mechanistic Aspects of the Phosphine-Catalyzed Isomerization of Allenic Sulfones to 2-Arylsulfonyl 1,3-Dienes
Hampton, Carissa S.,Harmata, Michael
, p. 12151 - 12158 (2016/01/09)
When an allenic sulfone is treated with a phosphine nucleophile and a proton shuttle, an isomerization to a 2-arylsulfonyl 1,3-diene occurs. Mechanistic aspects of the process were investigated leading to the formulation of a mechanism for the reaction. S
Regiodivergent synthesis of 1- and 2-arylsulfonyl 1,3-dienes
Hampton, Carissa S.,Harmata, Michael
supporting information, p. 1256 - 1259 (2014/03/21)
In the course of a study of the alkoxyallylation of allenic sulfones through the use of π-allylpalladium chemistry, we discovered an isomerization of allenic sulfones to arylsulfonyl 1,3-dienes. Under conditions of palladium catalysis in the presence of acids such as acetic acid, allenic sulfones are converted to 1-arylsulfonyl 1,3-dienes. On the other hand, nucleophilic catalysis using triphenylphosphine in the presence of a proton shuttle yields 2-arylsulfonyl 1,3-dienes. Thus, either regioisomer of the arylsulfonyl diene can be prepared at will based on changes in reaction conditions.
Selenosulfonation of Conjugated Enynes and the Enyne Equivalent 1,4-Dichloro-2-butyne. Preparation of Sulfonyl-Substituted Allenic Alcohols and Dienes Using Sigmatropic Rearrangements and Organocuprate Additions
Back, Thomas G.,Lai, Enoch K. Y.,Muralidharan, K. Raman
, p. 4595 - 4602 (2007/10/02)
Conjugated enynes undergo free-radical selenosulfonation under either photochemical or thermal conditions with Se-phenyl p-tolueneselenosulfonate (1).Addition to the triple bond occurred preferentially with enynes having an acetylenic terminus (6-8) affor
A new preparation of 3-substituted 2-(p-toluenesulfonyl)-1,3-dienes
Back,Lai,Muralidharan
, p. 6481 - 6482 (2007/10/02)
The title compounds were prepared by addition-elimination reactions of 2-(p-toluenesulfonyl)-2,3-butadien-1-ol. The latter was readily obtained from 1,4-dichloro-2-butyne by selenosulfonation, reductive elimination of chlorine and [2,3] sigmatropic rearra
Chemical Reactivity and Configurational Properties of Cyclopropyl Carbanions Derived from a Silyl Sulfonyl Substituted Cyclopropane
Padwa, Albert,Wannamaker, M. Woods,Dyszlewski, Andrew D.
, p. 4760 - 4767 (2007/10/02)
3,3-dimethyl-1-(p-tolylsulfonyl)-2-(trimethylsilyl)cyclopropene was prepared by the 1,3-dipolar cycloaddition of 2-diazopropane with p-tolyl 2-(trimethylsilyl)ethynyl sulfone followed by photoextrusion of nitrogen from the resulting 3H-pyrazole.Treatment
