Acetylenic and allenic carbinols, their utilization as starting

Details Acetylenic and allenic carbinols, their utilization as starting Acetylenic and allenic carbinols, their utilization as starting

1983-09-27

1984-12-11

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

556436, 556449, 568347, 568378, 568591, 568668, C07D30906, C07C 49543

Patent

active

044879440

ABSTRACT:
New acetylenic and allenic carbinols of formula ##STR1## respectively, wherein symbol R stands for a trialkyl-silyl or a C.sub.1 to C.sub.6 alkyl radical, preferably a methyl, a tert-butyl or an isoamyl radical, or a group of formula ##STR2## wherein, when taken separately, each of symbols R.sup.1 and R.sup.2 represents a lower alkyl radical or, when taken together, R.sup.1 and R.sup.2 represent a tetramethylene group, are useful intermediates for the preparation of .beta.-damascenone.

REFERENCES:
patent: 3400158 (1968-09-01), Roberts
patent: 3576880 (1971-04-01), Weedon et al.
patent: 4324729 (1982-04-01), Fankhauser
patent: 4405417 (1983-09-01), Grass et al.
patent: 4453013 (1984-06-01), Fankhauser

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