Poly[1-(trimethylsilyl)-2-propen-1-one]: the first example of a poly(.alpha.,.beta.-unsaturated acylsilane)

Abstract

Mz, ppm) 1.25 (6 H, CHa), 2.70 (4 H, CH2), 7.00 (2 H, Ph); 13C NMR (CDC13, 90 Mz, ppm) 130 (hr, Ph C), 16 (CH3), 24 (CH2). These spectroscopic data do not exclude the possibility that the 1,3-phenylene unit is contained in the 2,6-diethyI-1,4-phenylene sulfide structure.

Acylsilanes: valuable organosilicon reagents in organic synthesis

“…Of particular interest is the polymerisation of 1-(trimethylsilyl)-2-propen-1-one (VTMSK). 55 Because of the huge potential of a,b-unsaturated acylsilanes in organic synthesis, significant efforts have been made to develop convenient methods for their preparation.…”

Backbone-Photodegradable Polymers by Incorporating Acylsilane Monomers via Ring-Opening Metathesis Polymerization

“…These silicon-based moieties can be cleaved through either a Norrish-type homolysis or through the insertion of an α-siloxy carbene, generated via a 1,2- photo Brook rearrangement, into water followed by collapse of the hemiacetal (Figure C). , Either degradation mechanism can enable access to end-functionalized fragments for further chemical modifications. Additionally, polymers prepared by radical polymerization, with acylsilane in their side chains, underwent chemical changes upon UV irradiation. , Moreover, the small size of the acylsilanes was expected to enable straightforward design and synthetic planning of the proposed monomers. Thus, it was envisioned that eight-membered-ring acylsilane-based cyclic olefins would undergo efficient ROMP with other monomers and render a photodegradable polymer backbone.…”

“…30,31 Either degradation mechanism can enable access to end-functionalized fragments for further chemical modifications. Additionally, polymers prepared by radical polymerization, 32 with acylsilane in their side chains, underwent chemical changes upon UV irradiation. 33,34 Moreover, the small size of the acylsilanes was expected to enable straightforward design and synthetic planning of the proposed monomers.…”