Iodine mediated direct coupling of benzylic alcohols with dithiocarbamate anions: An easy access of S-benzyl dithiocarbamate esters under neat reaction condition
作者:Soumya Dutta、Amit Saha
DOI:10.1016/j.tetlet.2020.152382
日期:2020.10
solvent freesynthesis of S-benzylic dithiocarbamate esters has been demonstrated via the iodine mediated direct C-S coupling of benzylic alcohols with dithiocarbamate anions generated in-situ by the reactions of amines and carbon disulphide. All the reactions were very fast (15–30 min) and performed under open air atmosphere. Cyclic and acyclic secondary amines, primary amine, aromatic amine actively
Cycloaddition in Synthesis of Sulfonamide Derivatives. VI Unexpected Products from the Reaction of Dithiocarbamate with Chlorosulfonyl Isocyanate a Novel Synthetic Route to 5-Amino-1,2,4-dithiazol-3-one and N,N-Disubstituted N'-Chlorosulfonylcarbamimidoyl Chloride
作者:Tsuneo Iwakawa、Tomohiro Sato、Akira Murabayashi
DOI:10.3987/com-93-6641
日期:——
Reaction of propyl N-methyl-N-phenyldithiocarbamate (1a) with chlorosulfonyl isocyanate in the presence of AlCl3 gives 5-(N-methylanilino)-1,2,4-dithiazol-3-one (2), 1-methyl-2-propylthio-4-quinazolinone (3) and N-methyl-N-phenyl-S-propylthiocarbamate (4a) in addition to 3-propylthio-4H-1,2,4-benzothiadiazine 1,1-dioxide (5). However, the same reaction conducted without AlCl3 gives 2, 4 a, and (Z)-N-methyl-N-phenyl-N'-chlorosulfonylcarbamimidoyl chloride (6). Compound (2) exhibited fungicidal and antibacterial activities.