abstract |
Novel DELTA 9,11-gonadiene-5 alpha -ols of the formula WHEREIN R is alkyl of 1 to 4 carbon atoms, K is a blocked ketone in the form of a ketal, thioketal or methyloxime, preferably a ketal, and X is the rest of a pentagonal ring optionally substituted and their preparation which are useful intermediates for the preparation of DELTA 4,9,11-gonatrienes.n[US3872092A] |