Process for the preparation of methyl carbamates and thioimidate

Details Process for the preparation of methyl carbamates and thioimidate Process for the preparation of methyl carbamates and thioimidate

1986-02-11

1987-10-06

Ford, John M.

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

Organic compounds

Thioimidate esters

564255, 560134, 560132, 560338, 549470, 549452, 549438, C07C11918, C07C13100, C07C12504, C07D30778

Patent

active

046984380

ABSTRACT:
A continuous, close-coupled method for making N-methyl carbamate pesticides which comprises contacting the methyl isocyanate in a vapor phase mixture containing methyl isocyanate and water with a selected oxime or phenol, said mixture being the reaction product formed by oxidizing monomethylformamide. An optional intermediate step for preparing the methyl isocyanate/water vapor phase reaction mixture for contact with the oxime or phenol is to remove therefrom a portion of the water without liquefying the methyl isocyanate by cooling the mixture to a temperature below the dew point of water but above the dew point of the methyl isocyanate.

REFERENCES:
patent: 2870057 (1959-01-01), Hartle et al.
patent: 3506698 (1970-04-01), Jelinek
patent: 3576834 (1971-04-01), Buchanan
patent: 4207251 (1980-06-01), Heyboer

Affiliated with

Also associated with

Rating

Process for the preparation of methyl carbamates and thioimidate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of methyl carbamates and thioimidate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of methyl carbamates and thioimidate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2118374