[EN] DENTAL COMPOSITIONS AND METHODS WITH ARYLSULFINATE SALTS<br/>[FR] COMPOSITIONS DENTAIRES ET PROCEDES FAISANT APPEL A DES SELS ARYLSULFINATES
申请人:3M INNOVATIVE PROPERTIES CO
公开号:WO2005034884A1
公开(公告)日:2005-04-21
Polymerizable compositions and methods are provided that include an ethylenically unsaturated compound and an arylsulfinate salt. The polymerizable compositions are useful as hardenable dental compositions.
Photoredox alkene or alkyne alkylsulfonylation has been achieved with phthalimide esters and sulfinates providing unexpected α-sulfones. Mechanistic studies disclose that the preferential alkyl radical addition to the alkene or the Markovnikov hydrosulfonation of the alkyne should contribute to the formation of the β-alkylated α-sulfones. Moreover, the reaction is easy to operate covering quite large
<i>tert</i>-Butyl Nitrite Promoted Oxidative Intermolecular Sulfonamination of Alkynes to Synthesize Substituted Sulfonyl Pyrroles from the Alkynylamines and Sulfinic Acids
作者:Zhenjie Qi、Yong Jiang、Yanyan Wang、Rulong Yan
DOI:10.1021/acs.joc.8b00741
日期:2018.8.3
tert-Butyl nitrite promoted oxidative intermolecular sulfonamination of alkynes to synthesize substituted sulfonyl pyrroles from the alkynylamines and sulfinic acids via tandem addition/cyclization was developed. This reaction is performed well by employing tert-butyl nitrite as the oxidant, and various substituted sulfonyl pyrroles are formed in moderate to good yields with no requirement of metal catalysis.
ANNELATED PYRROLIDIN SULFONAMIDES WITH OXADIAZOLONE HEADGROUP, PROCESSES FOR THEIR PREPARATION AND THEIR USE AS PHARMACEUTICALS