Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1972-12-20
1976-03-23
Garner, Vivian
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2604025, 260514J, C07C14800, C07C149243, C07C14926
Patent
active
039460690
ABSTRACT:
Penicillamine or a homolog thereof is obtained by reacting a 2-disubstituted-5,5-alkyl-thiazolidine nitrile, alkyl having 1 to 6 carbon atoms, with a mineral acid in a two-stage proceeding wherein in the first stage relatively low temperatures and a relatively high concentration of the mineral acid are employed while in the second stage the concentration of the acid is relatively low and the temperatures are relatively high, the term "relatively" referring to the relationship of said two stages of the reaction with mineral acid.
REFERENCES:
patent: 3666770 (1972-05-01), Bell et al.
Ansinger et al., Justice Liebigs Ann. Chem., 697, pp. 140-157, 1966.
Asinger Friedrich
Offermanns Heribert
Pfeifer Wolf Dieter
Scherberich Paul
Schreyer Gerd
Deutsche Gold-und Silber-Scheideanstalt vormals Roessler
Garner Vivian
Striker Michael J.
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