References
- Tsuboi , S. , Shimozuma , K. and Takeda , A. 1980 . J. Org. Chem. , 45 : 1517 and references therein.
- Fritel , H. and Fetizon , M. 1958 . J. Org. Chem. , 23 : 481
- Payne , G. B. , Deming , P. H. and Williams , P. H. 1961 . J. Org. Chem. , 26 : 659
- Wicha , J. and Zarecki , A. 1974 . Tetrahedron Lett. , : 3059
- Cobobation of crude isopulegone oxides with water also furnished menthofuran of 93% purity. Refractionation on a 4-ft Pro-pak column gave a 99%-pure product: Unpublished results, Dr. L. Cherney.
- The optical purity of menthofuran is directly related to that of citronellal used.