Process for the preparation of alkyl N-(hydroxyalkyl)-carbamates

Details Process for the preparation of alkyl N-(hydroxyalkyl)-carbamates Process for the preparation of alkyl N-(hydroxyalkyl)-carbamates

1992-10-01

1994-04-19

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

560157, 560160, C07D21160, C07C26100

Patent

active

053046501

ABSTRACT:
Alkyl N-(hydroxyalkyl)-carbamates of the formula (I) ##STR1## in which R.sup.1 represents alkyl and R.sup.2 to R.sup.8 are identical or different and represent hydrogen or alkyl, or R.sup.2 and R.sup.3 together with the atoms to which they are bonded, form an optionally alkyl-substituted monocyclic ring, and n denotes 0 or 1,
can be obtained in high purity and very good space-time-yields when amino alcohols of the formula (II) ##STR2## in which R.sup.2 to R.sup.8 and n have the abovementioned meaning are reacted with chloroformates of the formula (III) ##STR3## in which R.sup.1 has the abovementioned meaning, in the presence of aqueous alkali metal hydroxide solutions and if appropriate in the presence of an organic solvent at temperatures between 30.degree. C. and 110.degree. C.
The substances prepared according to the invention can be employed as active compounds in agents for repelling insects and mites (cf. EP-A 289,842).

REFERENCES:
patent: 4900834 (1990-02-01), Kruger et al.
patent: 5008261 (1991-04-01), Kruger et al.
Chemical Abstracts, 1984, p. 618.
William Carruthers, 1988, J. Chem. Soc. Perkin Trans. I, pp. 2251-2253.
W. Gordon Rose, Journal of the American Chemical Society, 1947, pp. 1384-1387.
William Braker, J. Chem. Soc. Perkin Trans I, 1988, p. 1963.

Affiliated with

Also associated with

Rating

Process for the preparation of alkyl N-(hydroxyalkyl)-carbamates 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 alkyl N-(hydroxyalkyl)-carbamates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of alkyl N-(hydroxyalkyl)-carbamates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-20599