91292-08-9Relevant articles and documents
Reactions of 3-Phenylthiobut-3-en-2-one. Part 4. Novel and Efficient Synthesis of 7-hydroxycalamenene, Ferruginol, and D-Homoestrone
Takaki, Ken,Ohsugi, Masakatsu,Okada, Michikazu,Yasumura, Masateru,Negoro, Kenji
, p. 741 - 745 (2007/10/02)
The annelation reaction of 3-phenylthiobut-3-en-2-one with carvomenthone (1) gives 8a-hydroxy-4α-isopropyl-1-methyl-6-phenylthioperhydronaphthalen-7-one (2), which is converted into 7-hydroxycalamenene (4) by subsequent dehydration, methylation, and aroma