El-Sayed, Ibrahim; Abdel-Megeed, Mohamed F.; Yassin, Salah M., Phosphorus, Sulfur and Silicon and the Related Elements, 1994, vol. 86, # 1.4, p. 239 - 258
A convenient one-step procedure for the synthesis of ketene O,S- and ketene S,S-acetals via thioacylation of malononitrile
作者:N.H. Nilsson
DOI:10.1016/s0040-4020(01)97571-4
日期:1974.1
(XO) in the presence of two equivalents of sodium hydride followed by alkylation of the intermediate thiolate anion 3. In a similar manner a number of unsymmetrical ketene S,S-acetals were synthesised via thioacylation of 1 with chlorodithioformate esters 2 (XS). The reaction of the ketene O,S-acetals with secondary amines was investigated.
Thionothiocarbonates as well as the corresponding selenium compounds are good radicophilic starting materials for the efficient radical chain reactions of alcohols.