2-Amino-4-arylthiazoles through One-Pot Transformation of Alkylarenes with NBS and Thioureas
作者:Kaho Shibasaki、Hideo Togo
DOI:10.1002/ejoc.201900100
日期:2019.4.16
Various alkylarenes were successfully transformed into the corresponding 2‐amino‐4‐arylthiazoles and 2,4‐diarylthiazoles in good to moderate yields by the treatment with NBS, followed by the reaction with thioureas or arenethioamides.
Novel synthesis of
<scp>2‐Aminothiazoles</scp>
via Fe(
<scp>III</scp>
)‐Iodine‐catalyzed Hantzsch‐type condensation
作者:Sankuviruthiyil M. Ujwaldev、Nissy Ann Harry、Mohan Neetha、Gopinathan Anilkumar
DOI:10.1002/jhet.4166
日期:2021.2
A novel iron‐iodine catalyzed one pot synthesis of 2‐aminothiazoles from methyl aryl ketones and thiourea is demonstrated. This protocol can be considered as a catalyzed version of the classical Hantzsch aminothiazole synthesis as it enables the in situ generation of α‐iodoketones in the reaction medium using catalytic amount of iodine leading to Hantzsch condensation with thiourea. The supply of iodine
A one-pot synthesis of 2-aminothiazoles via the coupling of ketones and thiourea using I<sub>2</sub>/dimethyl sulfoxide as a catalytic oxidative system
A series of 2-aminothiazoles is prepared in moderate-to-good yields by the direct coupling of ketones and thiourea using I2/dimethyl sulfoxide as a catalytic oxidative system. This method avoids th...
Derivatives of urea and related diamines, methods for their manufacture, and uses therefor
申请人:Deprez Pierre
公开号:US20090054463A1
公开(公告)日:2009-02-26
The present invention relates generally to compounds represented in Formula I, pharmaceutical compositions comprising them and methods of treating of diseases or disorders related to the function of the calcium sensing receptor. The invention also relates to processes for making such compounds and to intermediates useful in these processes.