Preparation of halohydroxypropyl-trialkylammonium halides

Details Preparation of halohydroxypropyl-trialkylammonium halides Preparation of halohydroxypropyl-trialkylammonium halides

1990-09-12

1991-12-31

Reamer, James H.

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

Organic compounds

Amino nitrogen containing

C07C21304

Patent

active

050774352

ABSTRACT:
The present invention is a process for producing halohydroxypropyltrialkylammonium halides by reacting a trialkylamine salt with an epihalohydrin, the improvement comprising using 1,3-dihalo-2-propanol as a cosolvent. Using that cosolvent reduces the amount of diquaternary, dichloropropanol, and epoxy by-products formed. The cosolvent is preferably separated from the reaction mixture and recycled for use with additional trialkylamine salt and epihalohydrin. The process is particularly useful in preparing chlorohydroxypropyltrimethylammonium chloride.

REFERENCES:
patent: 2876217 (1959-03-01), Paschall
patent: 3134788 (1964-06-01), Noguchi et al.
patent: 3346563 (1967-10-01), Shildneck et al.
patent: 3532751 (1970-10-01), Langher et al.
patent: 3558501 (1971-01-01), McGuire et al.
patent: 4450295 (1984-05-01), van der Mass
patent: 4594452 (1986-06-01), Reimschuessel et al.
patent: 4602110 (1986-07-01), Tasset

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