The Rhodium(II) Acetate-Catalyzed Reaction of Diacyldiazomethanes with Isothiocyanates: Formation of 2-Thioxo-2H-1,3-oxazin-4(3H)-one.
作者:Hirofumi Nakano、Toshikazu Ibata
DOI:10.1246/bcsj.66.238
日期:——
The rhodium(II) acetate-catalyzed reaction of diacyldiazomethanes such as dibenzoyldiazomethane, acetylaroyldiazomethanes, diacetyldiazomethane, and diazodimedone with isothiocyanates gave 2-thioxo-2H-1,3-oxazin-4(3H)-ones through the [4+2] cycloaddition of isothiocyanates with acylketenes which were derived by the Wolff rearrangement of the diacyldiazomethanes. Migration aptitude of methyl and aryl groups was discussed in the reaction of acetylaroyldiazomethanes.
Formation of 2-Imino-1,3-oxathioles and 2(3<i>H</i>)-Oxazolethione by the Rhodium(II) Acetate-Catalyzed Reaction of α-Diazocarbonyl Compounds with Isothiocyanates
作者:Toshikazu Ibata、Hirofumi Nakano
DOI:10.1246/bcsj.65.3088
日期:1992.11
The rhodium(II) acetate-catalyzedreaction of various α-diazocarbonyl compounds with alkyl, phenyl, and benzoyl isothiocyanates gave 2-imino-1,3-oxathioles in good yields. 2(3H)-Oxazolethione was o...
乙酸铑 (II) 催化各种 α-重氮羰基化合物与烷基、苯基和苯甲酰基异硫氰酸酯反应,以良好的收率得到 2-亚氨基-1,3-氧杂硫醇。2(3H)-恶唑硫酮是...