Thermolyse von O,O-dialkyl-S-aryl-thiophosphorsäureestern
作者:K. Pilgram、F. Korte
DOI:10.1016/s0040-4020(01)98339-5
日期:1965.1
O,O-Dialkyl-S-aryl-phosphorothioates are thermally unstable and decompose readily at a temperature of about 150° with formation of alkyl aryl sulfides and polymeric alkyl meta- or -polyphosphates. Differences in reactivity within a series of 33 phosphorothioates are rationalized on the basis of steric and electromeric effects. The mechanism of the thermal degradation is discussed, the influence of
A metal-free oxidative P-S bonds coupling method for the synthesis of thiophosphates with DTBP as the oxidant is established. A wide range of functionalities are tolerated in the method. This method provides a facile way to synthesize thiophophates from readily available thiophenols/disulfides and phosphites. (c) 2015 Elsevier Ltd. All rights reserved.
US4342176A
申请人:——
公开号:US4342176A
公开(公告)日:1982-08-03
Magnetically recyclable Cu-BTC@Fe<sub>3</sub>O<sub>4</sub> composite-catalyzed C<sub>(aryl)</sub>–S–P bond formation using aniline, P(O)H compounds and sulfur powder
Cu-BTC@Fe3O4 composite was prepared and exhibited good catalytic activity toward the synthesis of S-aryl phosphorothioates. This three-component reaction involved the coupling of in situ generated aryl diazonium salts from aniline, R2P(O)H, and sulfur powder, allowing the facile and direct formation of C(aryl)-S-P bonds. A broad scope of substrates survived the reaction conditions to afford the corresponding