Small-ring Compounds. XXI. 3-Methylenecyclobutanone and Related Compounds<sup>1</sup>
作者:Frederick F. Caserio、John D. Roberts
DOI:10.1021/ja01554a064
日期:1958.11
Experiments leading to the preparation of 3-methylenecyclobutanone are described. The desired substance was obtained only admixed with 3-methylcyclobutenone and this fact prevented evaluation of possible cross-ring π-type electronic interaction between the double bond and the carbonyl group.
A [4 + 4] annulation approach to eight-membered carbocyclic compounds
作者:Rick L. Danheiser、Stephen K. Gee、Howard Sard
DOI:10.1021/ja00390a054
日期:1982.12
A regiocontrolled annulation approach to highly substituted aromatic compounds
作者:Rick L. Danheiser、Stephen K. Gee
DOI:10.1021/jo00183a043
日期:1984.5
DANHEISER, R. L.;GEE, S. K.;SARD, H., J. AMER. CHEM. SOC., 1982, 104, N 26, 7670-7672
作者:DANHEISER, R. L.、GEE, S. K.、SARD, H.
DOI:——
日期:——
Regiodivergent Cyclobutanone Cleavage: Switching Selectivity with Different Lewis Acids
作者:Laetitia Souillart、Nicolai Cramer
DOI:10.1002/chem.201406135
日期:2015.1.26
diverse building blocks. Herein, Lewisacidcatalyzed rearrangement reactions are presented that provide selective access to two structurally distinct polycyclic scaffolds, that is, indenylacetic acid derivatives and benzoxabicyclo[3.2.1]octan‐3‐ones. The choice of the Lewisacid fully controls the reactionpathway and the regioselectivity of the cyclobutanone CCbondcleavage site.