Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-09-09
1977-12-06
Helfin, Bernard
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260612R, 26034849, 26034857, 424340, 424341, 424278, C07C 4322
Patent
active
040616835
ABSTRACT:
Compounds of the formula ##STR1## wherein R.sub.1 represents hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, vinyl or ethynyl,
REFERENCES:
patent: 3155733 (1964-11-01), Reifschneider
patent: 3170959 (1965-02-01), Trapp
patent: 3240703 (1966-03-01), Symon et al.
patent: 3441615 (1969-04-01), Merica
patent: 3907783 (1975-09-01), Pallos
Ciba-Geigy Corporation
Falber Harry
Helfin Bernard
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