Precursors and synthesis of d1-(methyl)-16,16-(dimethyl)-11-alph

Details Precursors and synthesis of d1-(methyl)-16,16-(dimethyl)-11-alph Precursors and synthesis of d1-(methyl)-16,16-(dimethyl)-11-alph

1981-05-21

1982-11-23

Gerstl, Robert

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

Organic compounds

Silicon containing

200402, 2004109R, 200413, 560 17, 560121, 562431, 562503, 556427, 424305, 424317, 549501, C07L17700

Patent

active

043606881

ABSTRACT:
Novel compounds are disclosed of the classes: ##STR1## wherein the subscript n is an integer from 3-5, inclusive, R.sub.1 is hydrogen or R.sub.2 ; R.sub.2 and R.sub.3 consist essentially of C.sub.1 -C.sub.6 alkyl and R.sub.2 may be the same as or different from R.sub.3, and wherein Aryl consists essentially of phenyl and phenyl substituted with halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, and trifluoromethyl;
(b) derivatives of furan having the formula ##STR2## wherein R.sub.4 consists essentially of hydrogen and C.sub.1 -C.sub.6 alkyl, and W is either carbonyl or carbinol; and
(c) cyclopentenonyl compounds having the formulas ##STR3## wherein R.sub.5 consists essentially of hydrogen and C.sub.1 -C.sub.6 alkyl, P.sub.1 is hydrogen or a protective group, Y is either ##STR4## A new process is disclosed for preparing 1-(methyl)-16,16-(dimethyl)-11-alpha-15-alpha-dihydroxy-9-oxo-2,13,trans, trans-prostadienoate, and congeners thereof, including racemic mixtures.

REFERENCES:
patent: 3900512 (1975-08-01), Sih
patent: 3931296 (1976-01-01), Hayashi
patent: 4024174 (1977-05-01), Hayashi

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