Synthesis and reactivity of novel 3-isothiocyanatopropylsilatrane derived from aminopropylsilatrane: X-ray crystal structure and theoretical studies

New silatranes possessing urea functionality: Synthesis, characterization and their structural aspects

“…In addition, symmetric deformational vibration of the silatranyl skeleton with a predominant contribution from the SieN bond is observed in the region 590e579 cm À1 . All bands observed for silatranyl moiety are consistent with previous literature reports [23].…”

“…In continuation of our work on hypervalent silicon chemistry [22,23], we have devoted our considerable attention to the use of 3-isocyanatopropyltriethoxysilane as a precursor for the synthesis of some new silatranes. Herein, we synthesized a series of substituted triethoxysilanes (1e4) by reacting 3-isocyanatopropyltriethoxysilane with different amines (morpholine, aniline, ethylenediamine and 3-aminopropyltriethoxysilane), respectively.…”

1-Isothiocyanatosilatrane derived from trisisopropanolamine: Synthesis, characterization, reactivity and theoretical studies

“…The mass spectrum clearly constituted that the parent ion peak (M þ þ Na) at m/e ¼ 297. Besides the molecular ion peak, a silatranyl ion (m/e ¼ 216) peak observed which was corresponded to characteristic feature of mass spectrum of C-substituted silatrane involving the fragmentation of XeSi bond [14]. The molecular ion peak was more abundant as compared as compared to silatranyl ion peak.…”

Carbofunctional sulfur‐containing organosilicon compounds

“…There was a patent published describing methods for preparing silatranylalkylsulfides and dialkylsulfides. The methods generally included the following: Addition of alkanthiols to 1‐alkenylsilatranes. Reaction of bis(diorganylthio)alkanes with 1‐chloroalkylsilatranes. Trans‐etherification of trialkoxysilyl‐substituted alkylsulfides and tris(hydroxyethyl)amine. …”

“…Certain evidence on the reactivities of silatranes has been presented, covering the synthesis of 3‐isothiocyanatopropylsilatrane and its consecutive study in reactions with a series of Lewis acids and bases. 3‐Isothiocyanatopropylsilatrane was prepared by the reaction of 3‐aminopropylsilatrane with bicyclohexylcarbadiimide and carbon disulfide (Scheme ).…”