Ethylene glycol, other diols, triols, and polyols are made in an efficient manner by reacting dibromides with water in the presence of a metal oxide. An integrated process of dibromide formation, alcohol synthesis, metal oxide regeneration, and bromine recycling is also provided.
Catalyst for aromatic C-O, C-N, and C-C bond formation
申请人:——
公开号:US20030008768A1
公开(公告)日:2003-01-09
The present invention is directed to a transition metal catalyst, comprising a Group 8 metal and a ligand having the structure
1
wherein R, R′ and R″ are organic groups having 1-15 carbon atoms, n=1-5, and m=0-4. The present invention is also directed to a method of forming a compound having an aromatic or vinylic carbon-oxygen, carbon-nitrogen, or carbon-carbon bond using the above catalyst. The catalyst and the method of using the catalyst are advantageous in preparation of compounds under mild conditions of approximately room temperature and pressure.
Catalyst for aromatic C—O, C—N, and C—C bond formation
申请人:Yale University
公开号:US06562989B2
公开(公告)日:2003-05-13
The present invention is directed to a transition metal catalyst, comprising a Group 8 metal and a ligand having the structure
wherein R, R′ and R″ are organic groups having 1-15 carbon atoms, n=1-5, and m=0-4. The present invention is also directed to a method of forming a compound having an aromatic or vinylic carbon-oxygen, carbon-nitrogen, or carbon-carbon bond using the above catalyst. The catalyst and the method of using the catalyst are advantageous in preparation of compounds under mild conditions of approximately room temperature and pressure.