2083-91-2Relevant articles and documents
Hewson,Schmutzler
, p. 179,181,184 (1978)
Latent Nucleophilic Carbenes
Hurieva, Anastasiya,Koidan, Georgyi,Kostyuk, Aleksandr,Kyrylchuk, Andrii A.,Marchenko, Anatoliy,Rozhenko, Alexander B.,Rusanov, Eduard B.,Shvydenko, Kostiantyn
, (2021/12/27)
Using DFT and ab initio calculations, we demonstrate that noncyclic formamidines can undergo thermal rearrangement into their isomeric aminocarbenes under rather mild conditions. We synthesized the silylformamidine, for which the lowest activation energy in this process was predicted. Experimental studies proved it to serve as a very reactive nucleophilic carbene. The reactions with acetylenes, benzenes, and trifluoromethane proceeded via insertion into sp, sp2, and spCH bonds. The carbene also reacted with the functional groups, such as CHO, COR, and CN at double or triple bonds, displaying high mobility of the trimethylsilyl group. The obtained silylformamidine can be considered as a latent nucleophilic carbene. It can be prepared in bulk quantities, stored, and used when the need arises. Calculation results predict similar behavior for some other silylated formamidines and related compounds.
METHOD FOR PRODUCING DIALKYLAMINOSILANE
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Paragraph 0044-0048, (2018/03/09)
In a method for synthesizing dialkylaminosilane from a reaction of dialkylamine with chlorosilane as the method for producing dialkylaminosilane, a large amount of dialkylamine hydrochloride is produced as a by-product, in addition to objective dialkylaminosilane. Therefore, upon obtaining objective dialkylaminosilane, reduction of volumetric efficiency caused by a large amount of a solvent is prevented, and dialkylaminosilane is produced at a low cost and in a large amount. Dialkylaminosilane having a small halogen content is produced with high volumetric efficiency by using, as a solvent upon allowing dialkylamine to react with chlorosilane, an aprotic polar solvent having high solubility in dialkylamine hydrochloride and metal chloride each produced as a by-product by the reaction, and straight-chain or branched hydrocarbon having high solubility in dialkylaminosilane and hard to dissolve a halogen compound therein.
Organic [...] compound
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Paragraph 0069; 0070; 0071; 0072; 0073; 0074; 0075-0078, (2018/05/26)
This method for producing an organic silyl amine compound (3) represented by general formula (3) is characterized in that ammonia is removed by reactive distillation when an organic disilazane compound (1) represented by general formula (1) is reacted with an alkyl amine represented by general formula (2). An organic silyl amine compound can be obtained by this production method with high productivity without producing a salt. (In the formulae, each of R1, R2 and R3 independently represents a linear or branched alkyl group having 1-7 carbon atoms, a cyclic alkyl group having 3-5 carbon atoms or a phenyl group; and each of R4 and R5 independently represents a hydrogen atom, a linear or branched alkyl group having 1-5 carbon atoms or a cyclic alkyl group having 3-5 carbon atoms, provided that R4 and R5 are not hydrogen atoms at the same time.)