436154-01-7

Basic information

• Product Name: C₂₁H₂₆Si₂
• Synonyms: C₂₁H₂₆Si₂
• CAS NO: 436154-01-7
• Molecular Weight: 334.608
• Mol File: 436154-01-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₂₁H₂₆Si₂(CAS DataBase Reference)
• NIST Chemistry Reference: C₂₁H₂₆Si₂(436154-01-7)
• EPA Substance Registry System: C₂₁H₂₆Si₂(436154-01-7)

Safety Data

• Hazardous Substances Data: 436154-01-7(Hazardous Substances Data)

Upstream product

• 38002-45-8 3-bromo-1-(trimethylsilyl)-1-propyne 
• 80-10-4 diphenylsilyl dichloride 
• 1730-25-2 allylmagnesium bromide 

Relevant articles and documents

Stereoselective polycyclisations of allyl and enyne silanes: Evidence for bicyclo[3.2.0]hept-1(7)ene structure

The intramolecular copper(I)-catalyzed [2 + 2]-photocycloaddition of diphenyldiallysilane (1) (or tetraallylsilane (4)) led to sila-3-bicyclo[3.2.0]heptane (3) (or to spiro analogous 6) in the cis (or cis-cis) configuration whereas the α,ω-diiodide (2) obtained by cyclozirconation of 1 (or from the homologous tetraiodide 5) followed by addition of n-BuLi, produced the sila-3-bicyclo[3.2.0]heptane (3) (or to the spiro analogous 6) in the trans (or trans-trans configuration). The same cyclozirconation reaction, starting from the hetero enyne 7, selectively led to the highly strained silacyclobutene moiety 15 which represents the first stable hetero bicyclo[3.2.0]hept-1(7)ene skeleton, hypothetical intermediate in methathesis reactions.