摘要:
This invention relates to a method for preparing a monohalogenosilane, R¹R²R³SiX which comprises the step of subjecting, to a rearrangement reaction, an organodisiloxane, (R¹R²R³Si)₂O and a polyhalogenosilane, R⁴ n SiX 4-n in the presence of active carbon or an ammonium salt, R⁵R⁶R⁷R⁸NY as a catalyst (wherein R¹, R², R³ and R⁸ each represents a hydrogen atoms or a monovalent hydrocarbon group; R⁴, R⁵, R⁶ and R⁷ each represents a monovalent hydrocarbon group, a part or whole of the hydrogen atoms in each hydrocarbon group may be substituted with other atoms or groups; X represents a halogen atom; Y represents a monovalent anion; n is 0, 1 or 2). The method permits the easy preparation of monohalogenosilanes, in a high yield, which are useful as starting materials for use in making silylating agents as well as a variety of organosilicon compounds without using any harmful hexaalkylphosphoric acid triamide type catalyst.
摘要:
This invention relates to a method for preparing a monohalogenosilane, R¹R²R³SiX which comprises the step of subjecting, to a rearrangement reaction, an organodisiloxane, (R¹R²R³Si)₂O and a polyhalogenosilane, R⁴ n SiX 4-n in the presence of active carbon or an ammonium salt, R⁵R⁶R⁷R⁸NY as a catalyst (wherein R¹, R², R³ and R⁸ each represents a hydrogen atoms or a monovalent hydrocarbon group; R⁴, R⁵, R⁶ and R⁷ each represents a monovalent hydrocarbon group, a part or whole of the hydrogen atoms in each hydrocarbon group may be substituted with other atoms or groups; X represents a halogen atom; Y represents a monovalent anion; n is 0, 1 or 2). The method permits the easy preparation of monohalogenosilanes, in a high yield, which are useful as starting materials for use in making silylating agents as well as a variety of organosilicon compounds without using any harmful hexaalkylphosphoric acid triamide type catalyst.
摘要翻译:本发明涉及制备单卤代硅烷,R 1 R 2 R 3 SiX的方法,该方法包括使有机二硅氧烷(R 1 R 2 R 3) 3 Si)2 O和多卤代硅烷,R 4 nSiX 4-n在活性碳或铵盐的存在下作为催化剂(其中R 5 R 6 R 7 R 8 NY) R 1,R 2,R 3和R 8各自表示氢原子或一价烃基; R 4,R 5,R 6和R 7各自表示 每个烃基中的一价烃基,一部分或全部氢原子可以被其它原子或基团取代; X表示卤素原子; Y表示一价阴离子; n表示0,1或2)。 该方法允许以高产率容易地制备单卤代硅烷,其可用作制备甲硅烷基化试剂的原料以及各种有机硅化合物,而不使用任何有害的六烷基磷酸三酰胺型催化剂。