Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1972-12-22
1977-02-15
Sutto, Anton H.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260338, 2603405, 2603409, 260464, 260465D, 260468G, 260488B, 260586F, 260590FA, 260586C, C07D31912, A01N 928
Patent
active
040082539
ABSTRACT:
Bicycloalkane derivatives of the formula ##STR1## WHEREIN N IS 1 OR 2, R.sub.1 is lower alkyl, X is free or ketalized carbonyl or a free, esterified, or etherified hydroxymethylene, and Y is --S--R.sub.2, --SO.sub.m --R.sub.2, or ##STR2## wherein m is 1 or 2, R.sub.2 is alkyl, aryl, or aralkyl, R.sub.3 is hydrogen or lower alkyl, R.sub.4 is alkoxycarbonyl, or acyl or phenyl optionally substituted with lower alkoxy or benzyloxy- or acyloxy; and Z is nitrile, nitro, lower alkoxycarbonyl, lower alkanoyl, lower alkylsulfinyl, or lower alkylsulfonyl are useful intermediates in the total synthesis of steroids. The compounds are prepared by reacting a corresponding compound lacking the CH.sub.2 Y substituent with formaldehyde and a mercaptan or a sulfinic acid, followed if desired by oxidation and optional salt condensation.
REFERENCES:
patent: 3644429 (1972-02-01), Hajos et al.
Eder Ulrich
Haffer Gregor
Hauser Helmut
Ruppert Jurgen
Sauer Gerhard
Schering Aktiengesellschaft
Sutto Anton H.
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