The reaction of benzothiazolyl substituted α-phosphorylmethyl sulfoxides with several amines
作者:Hiroyuki Morita、Shintaro Tashiro、Masahiro Takeda、Nobuhiko Yamada、Md. Chanmiya Sheikh、Hiroyuki Kawaguchi
DOI:10.1016/j.tet.2008.02.028
日期:2008.5
α-phosphorylmethyl benzothiazolyl sulfoxides in the thermolyses and in the presence of several amines, such as aniline, benzylamine, piperidine, morpholine, and pyrrolidine. Thermolyses of the derivatives in the presence of 2,3-dimethyl-1,3-butadiene afforded 2-phosphoryl substituted 4,5-dimethyl-3,6-dihydro-2H-thiopyran S-oxide. In the reaction with amines, the complex product mixture, which contains
我们已经检查了α-磷酰基甲基苯并噻唑基亚砜在热解中以及在几种胺(例如苯胺,苄胺,哌啶,吗啉和吡咯烷)的存在下的反应性。在2,3-二甲基-1,3-丁二烯,得到存在的衍生物的Thermolyses 2 -磷酰基被取代的4,5-二甲基-3,6-二氢-2 H ^ -噻喃小号氧化物。在与胺的反应中,复合产物混合物包含α-磷酰基甲基苯并噻唑基硫化物(2和5),α-磷酰基甲基二硫化物(15和16)以及2-氨基取代的苯并噻唑14发现除目标膦碳硫磺酰胺外还形成了H。进行了一些机理研究以阐明形成机理,特别是对于起始亚砜的脱氧产物,即分别为3和6的2和5。