Triethylamine → HCID 123850930, compound

The preparation of an azasilacyclobutanes can be illustrated by the following: Diallylamine was reacted with chlorodimethylsilane in heptane in the presence of triethylamine to give diallylaminodimethylsilane as shown by the following equation ##STR24## The silane product was obtained by ambient pressure distillation after removal of triethylamine hydrochloride by filtration. 1-allyl-2,2,3-trimethyl-1-aza-2-silacyclobutane was made by intramolecular hydrosilation of the diallyldimethylsilane. This reaction was carried out at 80° C. in the presence of PtCl2 (PPh3)2 in benzene. The starting material was consumed in four hours to give a product mixture of 83 mole percent of the azasilacyclobutane and 17 mole percent of azasilacyclopentane as illustrated by the following equation ##STR25## Total yield of product was 77 weight percent. The azasilacyclobutane can be reacted with 1,1,3,3-tetramethyldisiloxane in the presence of a platinum catalyst which in turn can be reacted with an alkoxysilane having aliphatic unsaturation as described above to make an azasilacyclobutyl functional alkoxysilane of Formula (A).

ORD record

ord-242c5c3fe43e46d7b5bb64395b4b696a

Source dataset

uspto-grants-1994_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05276123