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Controlled Synthesis and Molecular Structures of Methoxy‐, Amino‐, and Chloro‐Functionalized Disiloxane Building Blocks
Author(s) -
EspinosaJalapa Noel Angel,
Bauer Jonathan O.
Publication year - 2020
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202000049
Subject(s) - disiloxane , chemoselectivity , chemistry , reactivity (psychology) , derivative (finance) , molecule , stereochemistry , combinatorial chemistry , medicinal chemistry , organic chemistry , catalysis , medicine , alternative medicine , pathology , financial economics , economics
Functionalized disiloxane units with defined structures are interesting molecular models for investigating the reactivity and chemoselectivity in transformations that are of interest in synthesis, surface chemistry, and materials science. (Mes)PhSi(OMe) 2 ( 1 ) (Mes = mesityl) and (Mes)PhSiCl 2 ( 5 ) were chosen as starting compounds for the controlled synthesis of methoxy‐, amino‐, and chloro‐functionalized unsymmetric disiloxanes. Two synthesis routes towards (Mes)PhSi(OMe)(OSiPh 3 ) ( 3 ) were followed, one via the aminomethoxysilane (Mes)PhSi(OMe)(NC 4 H 8 ) ( 2 ) and the other via the chlorodisiloxane (Mes)PhSiCl(OSiPh 3 ) ( 6 ). The amino‐substituted disiloxane (Mes)PhSi(NC 4 H 8 )(OSiPh 3 ) ( 4 ) was obtained from the chloro derivative 6 with N ‐pyrrolidinyllithium, but the same reaction starting from compound 3 was not successful. All provided disiloxanes were structurally characterized by X‐ray crystallography.