Process for preparing secondary amides by carbonylation of a...

Details Process for preparing secondary amides by carbonylation of a... Process for preparing secondary amides by carbonylation of a...

2011-06-14

2011-06-14

Davis, Brian J (Department: 1621)

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

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

07960585

ABSTRACT:
The present invention relates to a process for preparing secondary amides with good selectivity by carbonylating a corresponding tertiary amine with carbon monoxide in a reaction mixture in the presence of a metal catalyst and in the presence of a halogen containing promoter. The metal catalyst comprises palladium. A same or even a much better catalytic activity can be obtained with palladium than with the much more expensive rhodium, especially when the palladium is used in a low concentration. Moreover, also a good selectivity can be achieved.

REFERENCES:
patent: 0 185 823 (1986-07-01), None
patent: 0 365 382 (1990-04-01), None
patent: 3-275656 (1991-12-01), None
Kobayashi et al., Journal of Organometallic Chemistry (1982), 231(1), p. C12-C14.
Murahashi et al., Journal of the Chemical Society, Chemical Communications (1988), 24, p. 1578-1579.

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