Synthesis of organometallic compounds under high pressure
Laboratory for Physical Organic
Chemistry,
Department of Organic Chemistry and
Biochemistry,
Ruđer Bošković
Institute, Bijenička c. 54, 10000
E-mail: mmaksic@emma.irb.hr
High pressure synthesis[1] of novel policyclic structures containing silicon and
germanium atoms placed at the bridgehead positions, (organometallic derivatives
of bicyclo(2.2.1)hept-2-ene) will be presented. Thus, 1-sila-2,3,4,5-tetraphenyl-1,1-dimethyl-2,4-cyclopentadiene,
1-sila-2,5-diphenyl-1,1-dimethyl-2,4-cyclopentadienes and 1-germa-2,3,4,5-tetraphenyl-1,1-dimethyl-2,4-cyclopentadiene
are used as reactive dienes, which readily undergo [4p+2p] cycloadditions
with strained alkenes incorporated in norbornene skeleton (for instance, anti-1,4:5,8-diepoxy-1,4,5,8-tetrahydroanthracene
was used as a dienophile) to give 7-silanorbornene or 7-germanorbornadiene
derivatives.[2,3]
References:
1. Matsumoto, K.; Acheson, R. M. (eds.), Organic Synthesis at High Pressures,
Wiley,
2.
3.