2-CHLORO-2-HYDROXYIMINOACETIC ACID ETHYL ESTER synthesis
- Product Name:2-CHLORO-2-HYDROXYIMINOACETIC ACID ETHYL ESTER
- CAS Number:14337-43-0
- Molecular formula:C4H6ClNO3
- Molecular Weight:151.55
31767-15-4
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Yield:14337-43-0 94%
Reaction Conditions:
with chlorine in dichloromethane
Steps:
1.2 EXAMPLE 1
(2) Into a solution of the above obtained ethyl 2-hydroxyiminoacetate (1.17 g) in dry methylene chloride (40 ml) is gradually introduced gaseous chlorine (3.6 g) at 0° C. with cooling over a cryogen, and the resulting mixture is stirred below 0° C. for 1 hour and then stirred at room temperature for 1 hour. The product is crystallized from benzene/n-hexane to give ethyl 2-chloro-2hydroxyiminoacetate as colorless needles melting at 75° to 80° C. Yield is 94%. IR (CHCl3): 1740 (ester), 3550 (hydroxy) cm-1
References:
Shionogi & Co., Ltd. US4190728, 1980, A
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