Method for preparing trisilicon thiol

Abstract

The invention relates to a method for preparing trisilicon thiol, which relates to a compound and its preparation method. The general formula of trisilicon thiol is (R<,>R<,,>N)Si(SH)3, wherein R<,> is arylene group, a substituent group of an aromatic ring is hydrogen or alkyl; R<,,> is a triorganosilicon group or a triorganotin group, an organic group is alkyl or phenyl containing 1 - 20 carbon atoms. According to the invention, the aryl type primary amine is taken as a raw material, a primary amine metal salt is formed a deprotonation reaction through a metal organic reagent, then a salt elimination reaction is performed, an organic group containing siliceous or tin is introduced on a nitrogen atom of an amino group, a secondary amine can be obtained; the secondary amine is formed to a secondary amine metal salt through a deprotonation reaction of the metal organic reagent, the secondary amine metal salt enables a salt elimination reaction with silicon tetrahalogen for obtaining amino silicon trihalides; amino silicon trihalides is reacted with lithium sulfide for producing amino silicon trisulfide lithium compound; amino trisilicon thiol can be prepared through the protonation reaction of the organic acidity reagent.

Description

Technical field [0001] The invention relates to a compound and a preparation method thereof. Background technique [0002] Silicon-containing thiol compounds are a special kind of mercapto compound, that is, the sulfhydryl group SH is bonded to the silicon atom. This kind of compound can be regarded as the structural analog of the mercaptan compound containing carbon organic group, but because of silicon Atoms and carbon atoms are very different, so the two are quite different in synthesis and application. Silicon-containing mercaptan compounds are mainly used as reaction precursors to construct silicon-sulfur compounds or silicon-sulfur metal compounds; at the same time, they are also ideal probe molecules for electrochemical research; and are used in many organic synthesis such as protonation Polar reversible catalysis, reduction and addition of carbonyl groups of aldehydes and ketones play an important role. Silicon sulfur and silicon sulfur metal compounds can be used in el...

AI Technical Summary

Problems solved by technology

The source of its raw materials is complex and its synthesis requirements are relatively high

The reported yield can reach 83% at 0°C, but a large amount of by-products are produced at room temperature, and the reaction is greatly affected by temperature (Eur.J.Inorg.Chem.2007, 1225-1228)

[0006] There are many methods for the synthesis of silicon-containing thiol compounds, but the specific implementation is relatively difficult, and there is a lack of core authoritative characterization data

Silicon polythiol and preparation method thereof have not been reported yet

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