Cyclic process for the production of taurine from alkali isethionate and alkali vinyl sulfonate
申请人:Hu Songzhou
公开号:US20150299113A1
公开(公告)日:2015-10-22
The present invention discloses a cyclic process for the production of taurine from alkali isethionate and alkali vinyl sulfonate in a high overall yield of greater than 95% by continuously converting the byproducts of the ammonolysis reaction, sodium ditaurinate and sodium tritaurinate, to sodium taurinate. Pure sodium ditaurinate and sodium tritaurinate are prepared from diethanolamine and triethanolamine as starting materials, respectively, and are subjected to the ammonolysis reaction to yield a mixture of sodium taurinate, sodium ditaurinate, and sodium tritaurinate.
The invention is directed to certain 2,4-diaminoquinazoline compounds, their pharmaceutically acceptable salts, the pharmaceutical compositions comprising those compounds and their therapeutic methods of use. The compounds possess anti-ischemic activity.
Compounds of formula ##STR1## or pharmaceutically acceptable salts thereof, wherein E, Q, T, U, V, L, Z, X, W, M, Y and Y' are as set forth herein, are described. These compounds are useful as agents in the treatment of allergy, inflammation, autoimmune diseases, B-cell lymphomas, tumors, and the after effects of bone marrow transplantation.
The incorporation and extension of synthetically unprecedented nucleoside phosphoramidate sulfonates is demonstrated using thermophilic and mesophilic microbial polymerases.
使用嗜热和中温微生物聚合酶展示了合成前所未有的核苷酸磷酸酰胺磺酸盐的合并和扩展。
An efficient water-soluble surfactant-type palladium catalyst for Suzuki cross-coupling reactions in pure water at room temperature
作者:Pei Qiu、Jing Yang Zhao、Xu Shi、Xin Hong Duan
DOI:10.1039/c6nj00377j
日期:——
An in situ-generated Pd catalyst with a bidentate phosphine-type zwitterionic surfactant as a ligand showed high catalytic activity in the Suzuki reactions.