Clean and Economic Synthesis of Alkanesulfonyl Chlorides from S-Alkyl Isothiourea Salts via Bleach Oxidative Chlorosulfonation
作者:Jiaxi Xu、Zhanhui Yang、Bingnan Zhou
DOI:10.1055/s-0033-1338567
日期:——
Abstract A simple procedure for clean and economic synthesis of alkanesulfonyl chlorides via bleach-mediated oxidative chlorosulfonation of S-alkyl isothiourea salts is disclosed. This procedure is environment- and worker-friendly with the advantages of readily accessible materials and reagents, simple and safe operations, easy purification without chromatography, and affords high yields of up to 99%
The present invention provides a compound of the following formula and salts thereof:
Also provided is the use of these compounds as antibacterials, compositions comprising them and processes for their manufacture.
tert-Butyl Hypochlorite Mediated Oxidative Chlorination of S-Alkylisothiourea Salts: Synthesis of Sulfonyl Chlorides
作者:Kui Qiu、Rennan Wang
DOI:10.1055/s-0034-1381024
日期:——
Cbz-protecting group was not affected. Under neutral conditions, a variety of S-alkylisothiourea salts were smoothly converted into the corresponding sulfonyl chlorides through tert-butyl chlorite mediated oxidative chlorination in good to excellent yields after simple purification. In addition to the environmental and procedural advantages of this method, the neutral conditions potentially make it applicable
Synthesis of 4-(ω-Aminoalkyl)- or 4-(ω-Lactamiminoalkyl)thiazoles by Ring Chain Transformation of Isothioureas with Lactam Derivatives
作者:Ute Radics、Jürgen Liebscher、Michael Pätzel
DOI:10.1055/s-1992-26197
日期:——
CH-Acidic isothioureas 1 react with lactam acetals 2 at the unsubstituted N-atom as well as at the acidic S-methylene group giving 4-(Ï-aminoalkyl)thiazoles 6. The latter are further transformed to 4-(Ï-lactamiminoalkyl)thiazoles 8, if lactim ethers 3 are used in reactions with isothioureas 1.
SOLID FORMS OF 1-ethyl-3-(5-(5-FLUOROPYRIDIN-3-YL)-7-(PYRIMIDIN-2-YL)-1H-BENZO[D]IMIDAZOL-2-YL)UREA
申请人:Alargova Rossitza
公开号:US20100063284A1
公开(公告)日:2010-03-11
Solid forms of crystalline1-ethyl-3-(5-(5-fluoropyridin-3-yl)-7-(pyrimidin-2-yl)-1H-benzo[d]imidazol-2-yl)urea, compositions containing solid forms of crystalline1-ethyl-3-(5-(5-fluoropyridin-3-yl)-7-(pyrimidin-2-yl)-1H-benzo[d]imidazol-2-yl)urea and methods of using the same are described.