with diazomethane and several α-diazo esters to afford α-arylseleno isothiocyanates (5a–10a) and the isomeric thiocyanates (6b–8b) as the major and minor products, respectively. Analogous insertion reactions were observed with benzenesulfenyl thiocyanate (3) and benzeneselenenyl selenocyanate (4) to furnish phenylthiomethyl isothiocyanate (11), ethyl α-phenylthio-α-isothiocyanoacetate (12) and phenylselenomethyl
苯和邻
硝基苯硒基亚
硫氰酸酯(1和2)与
重氮甲烷和几种α-重氮酯反应,得到α-芳基
硒代异
硫氰酸酯(5a-10a)和异构体
硫氰酸酯(6b-8b),为主要产物和次要产物,分别。用
硫氰酸benzenesulfenyl(观察到类似的插入反应3)和
硒氰酸benzeneselenenyl(4),得到苯
硫基甲基异
硫氰酸酯(11),乙基α-苯
硫基α-isothiocyanoacetate(12)和phenylselenomethyl isoselenocyanate(13),乙基α-phenylseleno-α-异壬基
氰乙酸酯(14), 分别。N-(苯基
硒代)邻苯二甲
酰亚胺形成了插入产物N-(苯基
硒代甲基)邻苯二甲
酰亚胺(16)和α-苯基
硒代-α-邻苯二甲
酰亚胺基
乙酸乙酯(17),并带有
重氮甲烷和
重氮乙酸乙酯,但消除了相应的
乙烯基硒化物α-(苯基
硒代)乙基用含β-氢的重氮酯处理时,可得)
丙烯酸酯(18)和2