KI/K2S2O8-Mediated α-C–H Sulfenylation of Carbonyl Compounds with (Hetero)Aryl Thiols
作者:Tao Yang、Congshan Zhou、Zan Yang、Jiao Li、Jie Hua、Jianmin Yi
DOI:10.1055/s-0036-1588483
日期:2017.10
A new and facile KI/K2S2O8-mediated α-C–H sulfenylation of carbonyl compounds with (hetero)aryl thiols was developed for the formation of C–S bond at room temperature. This method provided a simple process for the synthesis of β-keto thioethers in moderate to excellent yields. A variety of carbonyl compounds and (hetero)aryl thiols were tolerated in this reaction.
Tetrazole derivatives, process for the preparation thereof, and anti-ulcer composition containing the same
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:EP0035228A1
公开(公告)日:1981-09-09
Tetrazole derivatives of the formula:
wherein R1 is a lower alkyl, phenyl or a group of the formula: -S(O)ℓ-A-(X)m-R3, and R2 is hydrogen, a lower alkyl, phenyl or a cycloalkyl when R' is the group-S(O)ℓ-A-(X)m--R3, or R2 is a group of the formula: -B-CO-R4 when R1 is a lower alkyl or phenyl and a pharmaceutically acceptable salt thereof, which have prophylactic or therapeutic activities against peptic and/or duodenal ulcers and are useful as an anti-ulcer drug; processes for the preparation of the tetrazole derivatives; and pharmaceutical composition containing said tetrazole derivatives.
Synthesis of 2-Substituted Tetrazole-5-Thiols and 5,5'-Disulfandiylbis(2-Alkyl-2H-Tetrazoles)
作者:S. V. Vorona、T. V. Artamonova、K. A. Kitchenko、Yu. E. Zevatskii、L. V. Myznikov
DOI:10.1007/s10593-014-1500-9
日期:2014.7
A method has been proposed for the synthesis of 2-alkyltetrazole-5-thiols. It was shown that these compounds are readily oxidized to the corresponding disulfides and their further functionalization has been studied.