Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...
Patent
1996-03-13
1997-09-23
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Unsubstituted hydrocarbyl chain between the ring and the -c-...
540533, 546243, 548543, 548552, C07D20726, C07D21176, C07D22310
Patent
active
056706391
ABSTRACT:
N-Vinyllactams of the general formula I ##STR1## where n is from 1 to 3, are prepared by a process which comprises reaction of a lactam of the general formula II ##STR2## where n is from 1 to 3, with from 10 to 90 percent by weight of an aqueous alkali metal hydroxide solution with distillation at from 50.degree. to 250.degree. C. and from 1 to 100 mbar and with a residence time of from 0.1 to 5 hours and subsequent reaction with acetylene at from 60.degree. to 250.degree. C. and from 1 to 100 bar.
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patent: 3185706 (1965-05-01), Mutaffis et al.
patent: 4410726 (1983-10-01), Parthasarathy et al.
patent: 4873336 (1989-10-01), Liu et al.
Reppe et al. Liebigs Ann. Chem., vol. 601, pp. 128-138 (1956).
Nedwick, Ind. Eng. Chem. Proc., Design & Dev., vol. 1 (1962) pp. 137-141.
Dams Albrecht
Heider Marc
Rust Harald
Schmidt-Radde Martin
BASF - Aktiengesellschaft
Rao Deepak
Shah Mukund J.
Shurtleff John H.
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