Preparation of hexamethl disilamine from hexamethyl disiloxane

Application Number: 00107494
Application Date: 2000.05.19
Publication Number: 1274725
Publication Date: 2000.11.29
Priority Information:
International: C07F7/10
Applicant(s) Name: Qinghua Univ.
Inventor(s) Name: Kan Chengyou;Zhao Peizhen;Liu Deshan
Patent Agency Code: 11201
Patent Agent: luo wenqun
Abstract The preparation includes the first reaction of hexamethyl disiloxane and phosphorous pentoxide in liquid organic compound as solvent, the ammonoloysis reaction in the said reaction system by adding halide as catalyst and leading ammonia gas in, sucking or pressing filtering to separate solid from liquid and collection of 124-126 deg.c fraction as hexamethyl disilamine. The preparation process of the present invention has the advantages of less investment in equipment, simple technological process, easy operation and low production cost.