Method for preparing poly(carbonate-etherimide) compound
申请人:PTT Global Chemical Public Company Limited
公开号:US10759904B2
公开(公告)日:2020-09-01
The present invention relates to a method for preparing poly(carbonate-etherimide) compound comprising polycarbonate segment as shown in the structure (A) and polyetherimide segment as shown in the structure (B). Said method does not contain a highly toxic phosgene in its operation, can be performed easily, and can be operated at not high temperature. wherein R1 represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; R2 represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; m is an integer from 1 to 15; and n is an integer from 1 to 10.
Metal-Free Iodine-Catalyzed Direct Arylthiation of Substituted Anilines with Thiols
作者:Daoshan Yang、Kelu Yan、Wei Wei、Jing Zhao、Mengqi Zhang、Xuguang Sheng、Guoqing Li、Shenglei Lu、Hua Wang
DOI:10.1021/acs.joc.5b00540
日期:2015.6.19
Iodine-catalyzed direct arylthiation of substituted anilines for the synthesis of various diaryl sulfides has been developed under metal- and solvent-free conditions. The present method uses readily available thiols as the arylthiation reagents, and environmentally friendly and inexpensive I-2 as the catalyst. Importantly, no base or ligand was necessary. Such a simple, efficient, and economical transformation provides an attractive approach to various diaryl sulfides in good to excellent yields.
CH557804
申请人:——
公开号:——
公开(公告)日:——
A METHOD FOR PREPARING POLY(CARBONATE-ETH ERIMIDE) COMPOUND
申请人:PTT Global Chemical Public Company Limited
公开号:EP3405453A2
公开(公告)日:2018-11-28
METHOD FOR PREPARING POLY(CARBONATE-ETHERIMIDE) COMPOUND
申请人:PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
公开号:US20190202980A1
公开(公告)日:2019-07-04
The present invention relates to a method for preparing poly(carbonate-etherimide) compound comprising polycarbonate segment as shown in the structure (A) and polyetherimide segment as shown in the structure (B). Said method does not contain a highly toxic phosgene in its operation, can be performed easily, and can be operated at not high temperature. wherein R
1
represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; R
2
represents aromatic with 6 to 30 carbon atoms or, optionally said aromatic is bonded with heteroatom; m is an integer from 1 to 15; and n is an integer from 1 to 10.