Organic compounds -- part of the class 532-570 series – Organic compounds – Halocarbonate esters
Patent
1982-01-22
1986-06-03
Daus, Donald G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Halocarbonate esters
558282, 558283, C07C 6802, C07C 6996
Patent
active
045928720
ABSTRACT:
Process for the synthesis of .alpha.-chlorinated chloroformates, and new .alpha.-chlorinated chloroformates.
The invention relates to a new process for the manufacture of .alpha.-chlorinated chloroformates and, to new .alpha.-chlorinated chloroformates as new industrial products.
The process according to the invention consists of a synthesis, by catalytic phosgenation, of .alpha.-chlorinated chloroformates of the formula: ##STR1## in which: R represents a substituted or unsubstituted hydrocarbon radical and m represents an integer superior or equal to one, this synthesis consisting in reacting phosgene with the aldehyde R--CHO).sub.m, in the presence of a catalyst which is an organic or inorganic substance which is capable in a medium containing an aldehyde of the formula R--CHO).sub.m, phosgene and, possibly, a solvent, of generating a pair of ions one of which is an halogenide anion and the other is a cation which is sufficiently separated from said halogenide anion so as to give to the latter a nucleophilic power enabling it to react with the function(s) aldehyde of the molecule R--CHO).sub.m.
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Cagnon Guy C.
Martz Jonathan T.
Olofson Roy A.
Piteau Marc D.
Senet Jean-Pierre G.
Daus Donald G.
Rivers Diana G.
Societe Nationale des Poudres et Explosifs
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