Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1979-05-22
1981-01-06
Lee, Mary C.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
546181, C07D20908
Patent
active
042435900
ABSTRACT:
Process for making indole by subjecting 1,2,3,4-tetrahydroquinoline to a thermal decomposition at a reaction temperature of about 650.degree. to 750.degree. C. in a reactor filled with a substantially inert material and in the presence of steam. The starting product for this process is easily available and can easily be obtained by chemical reaction and the process itself has a high yield.
REFERENCES:
patent: 3847937 (1974-11-01), Moggi et al.
Berichte, vol. 16 p. 738 (1883).
Hollins; Synthesis of Nitrogen Ring Compounds p. 145 (1924).
Elderfield; Heterocyclic Compounds, vol. 4 p. 283 (1952).
Thulheimer; Synthetic Methods; vol. 25:233 (1970), vol. 15:687 (1959).
Handrick Kurt
Kolling Georg
Bergwerksverband GmbH
Lee Mary C.
Striker Michael J.
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