New imidoyl isothiocyanates. Chemical behavior in polar solvents. Reaction with sulfenyl thiocyanates: preparation of 1,2-dihydro-2-thioxo-1,3,5-triazines and 1,3,4,6,6a-triazadithia[6aS(IV)]pentalenes
Insertion reactions of diazo compounds with some selenium(II) electrophiles
作者:Thomas G. Back、Russell G. Kerr
DOI:10.1016/0022-328x(85)88004-9
日期:1985.5
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
Arenesulfenyl thiocyanates (Ar–S–SCN) reacted with sulfoniumylides (MeR\overset⊕S–\overset\ominusC(COOMe)2) in chloroform at room temperature, forming sulfonium ion, MeRS⊕–C(SAr)(COOMe)2 SCN\ominus, which further reacted. The mechanism of this reaction was discussed.
Studies on Alkyl Isocyanoacetates and Related Compounds. Synthesis of 6-Arylthio-8-ethoxycarbonyl-4-ethoxycarbonylmethylaminoimidazo[5,1-b][1,3,5]thiadiazine-2-thiones
作者:Ricardo Bossio、Stefano Marcaccini、Monica Muratori、Roberto Pepino、Giovanni Valle
DOI:10.3987/com-89-5243
日期:——
Lecher; Wittwer, Chemische Berichte, 1922, vol. 55, p. 1477,1479