Process for production of N-vinyllactam

Details Process for production of N-vinyllactam Process for production of N-vinyllactam

1998-08-27

1999-08-31

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548555, 546243, 540485, C07D207267

Patent

active

059455446

ABSTRACT:
A process for producing an N-vinyllactam by reacting a lactam with acetylene in the presence of a particular catalyst (an alkali metal alcoholate between an alicyclic alcohol and an alkali metal) in a nonaqueous system at an acetylene partial pressure of 0 to 10 kg/cm.sup.2 .multidot.G.
In the above process, the vinylation of lactam with acetylene is conducted at a low acetylene partial pressure in one step while the formation of by-product is kept minimum, whereby a high conversion and a high selectivity of lactam can be achieved.

REFERENCES:
patent: 4873336 (1989-10-01), Liu et al.

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