References
- For a recent account of a variety of synthetic approaches, see: Symposia-in-Print, Number 3, edited by L. A. Paquette, Tet., (1981), 37, No. 25
- Prof. Paquette also provides a lively discussion of cyclopentanoid chemistry in Topics in Current Chemistry, L. A. Paquette, (1979), 79, 41–165
- Singh , P. and Weinreb , S. M. 1976 . Tet. , 32 : 2379
- Cooke , M. P. Jr. 1981 . Tetrahedron Letters , : 381
- Svendsen , A. and Boll , P. M. 1973 . Tet. , 28 : 4251
- Chamot , E. and Paquette , L. A. 1978 . J. Org. Chem. , 43 : 4527 Paquette has used the corresponding anhydride, (i), in a Diels-Alder reaction
- Dauben , W. G. , Kessel , C. R. and Takamura , K. H. 1980 . J. Am. Chem. Soc. , 102 : 6893 The high-pressure cycloaddition of ii with furan has provided a simple synthesis of cantharidin
- A likely mechanism for this conversion is shown below:
- An unambiguous synthesis of 8 confirmed its structure: