反応式
C[Si]1(C)[NH:9][Si:8]([CH3:11])([CH3:10])[NH:7][Si:6]([CH3:13])([CH3:12])[NH:5][Si:4]([CH3:15])([CH3:14])N1>C[Si]1(C)N[Si](C)(C)N[Si](C)(C)N[Si](C)(C)N1.NC1C=CC(C)=C(S(O)(=O)=O)C=1>[CH3:15][Si:4]1([CH3:14])[NH:5][Si:6]([CH3:12])([CH3:13])[NH:7][Si:8]([CH3:10])([CH3:11])[NH:9]1参加物
反応条件
- 温度
- 97 °C
実験手順
A 200 ml volume glass flask equipped with a stirring machine, a condenser, a distillation column and a tube for distilling off the resulting product was provided. 73 g of octamethyl cyclotetrasilazane and 3.65 g of p-toluidine-m-sulfonic acid as a catalyst were introduced into the glass flask and the content of the flask was heated to 97° C. The content of the flask was stirred after it was confirmed that the octamethyl cyclotetrasilazane was completely molten. When the internal pressure of the reaction system was reduced to 65 torr with a vacuum pump to obtain a distillate, 68 g of hexamethyl cyclotrisilazane was obtained through the distillation over one hour. The resulting hexamethyl cyclotrisilazane had a high purity in the order of 99.1 GC % and the yield thereof was 93.2%. Thus, highly pure hexamethyl cyclotrisilazane could be obtained at a high yield within a short period of time. Moreover, almost no high boiling point substance remained in the reaction system.
後処理
- customA 200 ml volume glass flask equipped with a stirring machine, a condenser
- distillationa distillation column and a tube
- distillationfor distilling off the resulting product
- customwas provided
- customto obtain a distillate
出典と根拠
- ORDレコード
- ord-ac928fd5c76e4e48b2464afae04e1d3c
- 出典データセット
- uspto-grants-1991_12
- 特許番号
- US05075474
関連ノート
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