87517-77-9Relevant academic research and scientific papers
Regio- and Stereoselective Oxysulfonylation of Allenes
Huang, Zhiyuan,Lu, Qingquan,Liu, Yichang,Liu, Dong,Zhang, Jian,Lei, Aiwen
supporting information, p. 3940 - 3943 (2016/08/30)
A highly regio- and stereoselective oxysulfonylation of allenes was developed that provided direct access to 2-sulfonyl allylic alcohols in good yields. By means of dioxygen activation, selective difunctionlization of allenes could be successfully achieved under mild metal-free conditions. Preliminary mechanistic investigation disclosed that this transformation probably goes through a radical process.
Aerobic copper-catalyzed synthesis of (E)-alkenyl sulfones and (E)-β-halo-alkenyl sulfones via addition of sodium sulfinates to alkynes
Taniguchi, Nobukazu
supporting information, p. 1984 - 1990 (2014/03/21)
Copper-catalyzed sulfonylation of alkynes using sodium sulfinates in air produced regio- and stereoselectively (E)-alkenyl sulfones. When a CuCl catalyst was employed, the hydrosulfonylation proceeded syn-selectively, and (E)-alkenyl sulfones were synthesized in excellent yields. In contrast, the reaction using CuI catalyst produced (E)-β-haloalkenyl sulfones anti-selectively in the presence of potassium halides. Furthermore, the (E)-β-bromoalkenyl sulfones are possible to convert into various alkenyl sulfones by Suzuki-Miyaura coupling.
Stereoselective synthesis of (E)-alkenyl sulfones from alkenes or alkynes via copper-catalyzed oxidation of sodium sulfinates
Taniguchi, Nobukazu
supporting information; experimental part, p. 1308 - 1312 (2011/07/07)
Alkenyl sulfones can be stereoselectively synthesized from alkenes or alkynes using sodium sulfinates. The reaction can be performed by a copper-catalyzed oxidation of sodium sulfinates in air. The reaction of alkenes gives (E)-alkenyl sulfones via anti addition of sulfonyl cation and elimination process. Furthermore, the employment of alkynes produces (E) β- haloalkenyl sulfones in the presence of potassium halides. Georg Thieme Verlag Stuttgart · New York.
Reactions of amines with β-(phenylseleninyl)vinyl sulfones derived from the selenosulfonation of acetylenes. Formation of enamine sulfones
Back, Thomas G.,Collins, Scott,Law, Kwok-Wai
, p. 2313 - 2318 (2007/10/02)
β-(Phenylseleno)vinyl sulfones 2 were prepared from the selenosulfonation of acetylenes and were oxidized to the corresponding selenoxides 3.These were treated in situ with morpholine (4) or pyrrolidine (5) to afford the corresponding enamine sulfones 6 a
