METHOD FOR PRODUCING 2-HYDRAZINOBENZOTHIAZOLE DERIVATIVE
申请人:DIC Corporation
公开号:US20200165215A1
公开(公告)日:2020-05-28
The present invention provides a novel method for producing a 2-hydrazinobenzothiazole derivative. The present invention also provides a method for producing a compound by using the 2-hydrazinobenzothiazole derivative obtained by the production method, and a composition that contains the compound. The present invention also provides a polymerizable composition that is useful in producing film-shaped polymers and contains the compound obtained by the production method. The invention of the present application provides a method for producing a compound represented by general formula (I-C), the method including a step of reacting a compound represented by general formula (I-B) with a compound represented by general formula (I-A) in the presence of at least one compound selected from the group consisting of metal amides, metal hydrides, metal alkoxides, and organic alkali metals. A compound derived from the compound produced by the production method, and a composition that contains the compound are also provided.
Room-Temperature Amination of Chloroheteroarenes in Water by a Recyclable Copper(II)-Phosphaadamantanium Sulfonate System
作者:Udaysinh Parmar、Dipesh Somvanshi、Santosh Kori、Aman A. Desai、Rambabu Dandela、Dilip K. Maity、Anant R. Kapdi
DOI:10.1021/acs.joc.1c00845
日期:2021.7.2
Buchwald–Hartwig amination of chloroheteroarenes has been a challenging synthetic process, with very few protocols promoting this important transformation at ambient temperature. The current report discusses about an efficient copper-based catalyticsystem (Cu/PTABS) for the amination of chloroheteroarenes at ambient temperature in water as the sole reaction solvent, a combination that is first to
Direct N-alkylation of amino-azoles with alcohols catalyzed by an iridium complex/base system
作者:Feng Li、Haixia Shan、Lin Chen、Qikai Kang、Po Zou
DOI:10.1039/c1cc14861c
日期:——
The direct and regioselective N-alkylation of amino-azoles to the corresponding 2-N-(alkylamino)azoles using various alcohols as alkylating agents with good to excellent yields has been accomplished by an iridium complex/base system.
Palladium-Catalyzed Amination of Aryl Sulfides with Aliphatic Amines
作者:Ke Gao、Hideki Yorimitsu、Atsuhiro Osuka
DOI:10.1002/ejoc.201500226
日期:2015.4
Conditions for the palladium–NHC-catalyzed amination of arylsulfides with aliphatic as well as aromatic amines were established. The KHMDS-mediated amination of heteroaryl sulfides could proceed without palladium. Based on the distinct difference in reactivity of C–Br and C–S bonds, a sequential amination of bromothioanisole can take place to install two different alkylamino groups onto the aromatic
An Fe(III) catalyzed, efficient methodology for the synthesis of 2-aminobenzothiazole derivatives in water was established. This mild, base-free, one-pot strategy showcases the reaction of readily available 2-bromophenyl isothiocyanate with a broad range of substituted amines such as aliphatic, aromatic, primary, secondary and cyclic amines under air. Notably, the reaction afforded the corresponding