摘要:
NEW PROCESS FOR PREPARING (10)-ANNULENE COMPOUNDS WHICH ARE USEFUL AS ESTROGENIC, ANTI-INFLAMMATORY, AND ANTI-FERTILITY AGENTS. THE PROCESS UTILIZES THE STEPS OF ADDING A METHANO, DICHLOROMETHANO, OR DIFLUOROMETHAO GROUP ACROSS THE C-9,10 DOUBLE BOND OF A 1,4,5,8-TETRAHYDRONAPHTHALENE TO THE CORRESPONDIG 9,10-BRIDGED-1,45,8,9,10-HEXAHYDRONAPHTHLENE AND TREATING THE LATTER WITH A BENZOQUINONE TO THE CORRESPONDING 1,6-BRIDGED(10)-ANNULENE PRODUCT. THE PREPARATINS OF 1,6-METHANO(10)-ANNULENE, 1,6-DICHLOROMETHANO-(10)-ANNULENE, AND 1,6-DIFLUOROMETHANE-(10)-ANNULENE ARE ILLUSTRATED AS REPRESENSTATIVE OF THE PROCESS.
摘要:
The invention relates to compounds of formula ##STR1## having a double bond in one of the positions indicated by the dotted lines. Compounds (I) are useful as perfuming ingredients for the preparation of perfuming compositions and perfuming articles, to which they impart sandalwood-animal notes.
摘要:
New odoriferous compounds, particularly the compounds having the following formula: ##STR1## wherein R is an aliphatic residue having the formula ##STR2## wherein R.sup.1 is a C.sub.1-4 alkyl, C.sub.1-4 alkylidene or C.sub.2-4 alkenyl, the sum of the carbon atoms being in those residues from 2 to 5, m and n being equal to zero or 1, p being 1, 2 or 3 and the dotted lines representing one or two optional double bonds. The invention also relates to a method for the preparation of new di-ketones I: as well as the use of I as odoriferous compounds in odoriferous compositions, which are characterized by a certain proportion of compounds having the formula I.
摘要:
The invention relates to a method for preparing an ester composition in which at least one activated phenolic ether group of a molecule is reacted with at least one haloformyl group of another molecule.
摘要:
This invention relates to the 15-fluoro-retinoid compounds which provide vitamin A activity with reduced liver storage. A preferred compound is retinoyl fluoride.