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...
Acyl-isothiocyanates as Efficient Thiocyanate Transfer Reagents
作者:Charuta C. Palsuledesai、Siva Murru、Santosh K. Sahoo、Bhisma K. Patel
DOI:10.1021/ol901561j
日期:2009.8.6
An unprecedented transfer of a thiocyanate (-SCN) group from aroyl/acyl isothlocyanate to alkyl or benzylic bromide is observed in the presence of a tertiary amine. This process is most effective when the bromomethyl proton is less acidic, while the presence of a more acidic proton gives 1,3-oxathiol-2-ylidine and other related products.