| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to synthesis of O-silylurethanes which are used as raw material during synthesis of organic isocyanates and curing agents of silicon rubber. The engineering problem is to simplify the process and increase output of the desired product. Use of carbon dioxide and N,N'-bis-(trimethylsilyl)carbodiimide as N-siloxycarbonylation mixture. ^ EFFECT: method allows for significantly cutting on process life (2 hours), considerably increasing output of product (98%) and avoiding formation of highly toxic ammonia gas. ^ 1 cl, 1 tbl, 1 ex |
