The present invention is in the field of flame retardants and relates to use of sulfenamides as flame retardants, in particular in polymeric substrates.
本发明属于阻燃剂领域,涉及将硫代酰胺用作阻燃剂,特别是在聚合物基材中的使用。
Four-component couplingvia a sequence of threeAd E reactions involving arenesulfenyl chloride, two alkyl vinyl ether units, and silicon-containing π-donors as a method for the synthesis of polyfunctional compounds
作者:M. I. Lazareva、Yu. K. Kryschenko、A. D. Dilman、A. Hayford、R. Caple、W. A. Smit
DOI:10.1007/bf02498158
日期:1998.5
A protocol for the synthesis of polyfunctional compounds by a Lewis acid initiated tandem sequence of threeAdE reactions of sulfur-containing electrophiles with two alkylvinylether units and silicon containing π-donors is proposed.
Stereoselective synthesis of β- C - d -glucopyranosides using the reaction of TMSCN and Grignard reagents with cyclic five-membered sulfonium salt intermediates
作者:Hui Liu、Irina P Smoliakova
DOI:10.1016/s0040-4020(01)00160-0
日期:2001.4
the presence of a Lewis acid, ArSCl adducts of tri-O-benzyl-d-glucal react with vinyl ethers to form cyclic five-membered sulfonium salt intermediates. The latter are capable of reacting with TMSCN and Grignardreagents furnishing exclusively 2-S-(aryl)-2-thio-β-C-d-glucopyranosides. The one-pot reaction also proceeds with high stereoselectivity of C–C bond formation in the lateral chain providing exclusively
在路易斯酸的存在下,三-O-苄基-d-葡糖醛的ArSCl加合物与乙烯基醚反应形成环状五元sulf盐中间体。后者能够与TMSCN和仅提供2- S-(芳基)-2-硫代-β- C -d-吡喃葡萄糖苷的格利雅试剂反应。一锅法反应还会在侧链中形成C–C键的立体选择性高的情况下进行,从而仅或主要提供具有侧链中手性中心的(S)-构型的C-糖苷。
Reaction of vinyl ethers with ArSCl adducts of d-glucal
作者:Irina P. Smoliakova、Mingming Han、Jianchun Gong、Ron Caple、William A. Smit
DOI:10.1016/s0040-4020(99)00161-1
日期:1999.4
Lewis acid mediated reactions of vinylethers with ArSCl adducts of benzyl protected D-glucal followed by quenching of the five-membered sulfonium salt intermediates with external nucleophiles, H2O, MeOH, and n-Bu4NBH4, lead to a highly stereoselective formation of β-C-glucopyranosides with different functional groups in the lateral chain.
路易斯酸介导的乙烯基醚与苄基保护的D-葡糖的ArSCl加合物的反应,然后用外部亲核试剂,H 2 O,MeOH和n- Bu 4 NBH 4淬灭五元sulf盐中间体,从而产生高度立体选择性的形成β - ç -葡糖吡喃糖苷在横向链不同的官能团。
Chiral Selenide/Achiral Sulfonic Acid Cocatalyzed Atroposelective Sulfenylation of Biaryl Phenols via a Desymmetrization/Kinetic Resolution Sequence
Enantioselective synthesis of axially chiral sulfur-containing biaryl derivatives through the electrophilic sulfenylation of biaryl phenols has been achieved for the first time. This catalyticasymmetric system, which involves sequential desymmetrization and kinetic resolution, is enabled by a combination of a novel 3,3′-disubstituted BINOL-derived selenide catalyst and an achiral sulfonic acid. Control experiments