SILYLENE AND DISILENE ADDITIONS TO HEXA-2,4-DIYNE - FORMATION OF A PROPYNYLSILIRENE AND OF BICYCLIC COMPOUNDS

Authors
KIRMAIER L WEIDENBRUCH M MARSMANN H PETERS K VONSCHNERING HG
Citation
L. Kirmaier et al., SILYLENE AND DISILENE ADDITIONS TO HEXA-2,4-DIYNE - FORMATION OF A PROPYNYLSILIRENE AND OF BICYCLIC COMPOUNDS, Organometallics, 17(6), 1998, pp. 1237-1240
Citations number
24
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
17
Issue
6
Year of publication
1998
Pages
1237 - 1240
Database
ISI
SICI code
0276-7333(1998)17:6<1237:SADATH>2.0.ZU;2-D
Abstract
Tetra-tert-butyldisilene and di-tert-butylsilylene, generated by photo lysis of hexa-tert-butylcyclotrisilane (1), react with the triple bond s of hexa-2,4-diyne to provide the addition products octa-tert-butyl-2 -methylene-5-methyl-3, 4, 7, 8-tetrasilabicyclo[4.2.0]oct-1(6)-ene (5) and di-tert-butyl-2-methyl-3-propynylsilirene (6). Further treatment of 6 with 1 is thought to proceed via a bis(silirene) derivative to fu rnish the rearranged tetra-tert-butyl-3, 6-dimethyl-2, 5-disilabicyclo [2.2.0]hexa-1 (6),3-diene (12). The structures of 5 and 12 were determ ined by X-ray crystallography.