148728-63-6

Basic information

• Product Name: 3,3-Dichlor-4-trichlorsilyl-6,6-dimethyl-3-silahept-1-en
• Synonyms: 3,3-Dichlor-4-trichlorsilyl-6,6-dimethyl-3-silahept-1-en
• CAS NO: 148728-63-6
• Molecular Weight: 344.643
• Mol File: 148728-63-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3,3-Dichlor-4-trichlorsilyl-6,6-dimethyl-3-silahept-1-en(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3-Dichlor-4-trichlorsilyl-6,6-dimethyl-3-silahept-1-en(148728-63-6)
• EPA Substance Registry System: 3,3-Dichlor-4-trichlorsilyl-6,6-dimethyl-3-silahept-1-en(148728-63-6)

Safety Data

• Hazardous Substances Data: 148728-63-6(Hazardous Substances Data)

Relevant articles and documents

Sila Heterocycles, XXII. - Diels-Alder Reactions of Dichloro(neopentyl)silaethene with Furans and Rearrangement of the Resulting Bicycles into Monocyclic Si-O Seven-Membered Ring compounds.

The reaction of trichloro(vinyl)silane (1) and LitBu (2) initially leads to the α-lithio adduct Cl3SiCH(Li)CH2tBu (3) which can be trapped by trimethylsilyl triflate yielding the C-silylated product . 1,2-LiCl elimination from 3 gives dichloro(neopentyl)silaethene as intermediate.This can be established by insertion of 4 into the Si-O bond of Me3SiOMe to Cl2Si(OMe)CH(SiMe3)CH2tBu (6). 4 is a dienophile of high activity and reacts with the furans 7-9 to give the cycloaddition compounds 10-12.These Diels-Alder products are thermally unstable and decompose slowly at room temperature into the starting furans and tetrachlorodisilacyclobutane (15).Under thermolysis conditions (3d/170 deg C) they rearrange into the monocyclic Si-O seven-membered ring compounds 16-18.A mechanism for the 7-Oxa-2-silabicyclohex-5-en -> 1-Oxa-2-silacyclohepta-4,6-diene rearrangement is proposed. Key Words: Silaethene derivatives/Furans/Cycloaddition reactions/Rearrangements/Sila heterocycles/Diels-Alder reactions