Extremely deformed hydrocarbon skeleton of a clamped biphenylene
摘要:
The highly strained and distorted ketone 1,2,3-trihydrocycloheptal[3,4,5,6-def]biphenylene-2-one 5 is prepared in 17% yield by cyclization of 1 with TsCNMe (Ts = p-Me-C6H4SO7); the X-ray analysis of 5 exhibits an extremely elongated C(4a)-C(4b) bond (156.4 pm) and a strong alternation of bond lengths in both benzene rings.
作者:Schulz, Jochen E.、Rissanen, Kari、Voegtle, Fritz
DOI:——
日期:——
Extremely deformed hydrocarbon skeleton of a clamped biphenylene
作者:Fritz Vögtle、Jochen E. Schulz、Kari Rissanen
DOI:10.1039/c39920000120
日期:——
The highly strained and distorted ketone 1,2,3-trihydrocycloheptal[3,4,5,6-def]biphenylene-2-one 5 is prepared in 17% yield by cyclization of 1 with TsCNMe (Ts = p-Me-C6H4SO7); the X-ray analysis of 5 exhibits an extremely elongated C(4a)-C(4b) bond (156.4 pm) and a strong alternation of bond lengths in both benzene rings.