Reactions of acyl isothiocyanates with diphenyldiazomethane: a route to oxazole derivatives and thietan-3-imines
作者:Gerrit L'abbé、Agna Francis、Wim Dehaen、Suzanne Toppet
DOI:10.1039/c39950000067
日期:——
Acyl isothiocyanates 4a–e react with two equivalents of diphenyldiazomethane at room temperature to give the 4,5-dihydro-1,3-oxazole-4-spiro-2′-thiiranes 5a–e which isomerize thermally to the thietan-3-imines 6a–e.
酰基异硫氰酸酯 4a-e 与两当量的二苯基二氮甲烷在室温下发生反应,生成 4,5-二氢-1,3-恶唑-4-螺-2′-硫环 5a-e,热异构化成硫杂环丁烷-3-亚胺 6a-e。