中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (R)-(-)-methyl 2-(3-chlorophenyl)-2-hydroxyacetate | 153294-00-9 | C9H9ClO3 | 200.622 |
3-氯扁桃酸 | 3-chloromandelic acid | 16273-37-3 | C8H7ClO3 | 186.595 |
(S)-3-氯扁桃酸 | (S)-3-chloromandelic acid | 32222-43-8 | C8H7ClO3 | 186.595 |
—— | (R)-3-chloromandelic acid | —— | C8H7ClO3 | 186.595 |
—— | 2-(3-chlorophenyl)-2-oxoacetic acid | 26767-07-7 | C8H5ClO3 | 184.579 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
(S)-3-氯扁桃酸 | (S)-3-chloromandelic acid | 32222-43-8 | C8H7ClO3 | 186.595 |
PROBLEM TO BE SOLVED: To provide an economical and industrial method for producing high purity optically active mandelamide derivatives and optically active phenylethanolamine derivatives with high safety and ease in high yield which are useful as intermediates for pharmaceuticals and agricultural chemicals due to many problems of the conventional method.
SOLUTION: The method for producing the optically active mandelamide derivatives comprises reacting an optically active mandelic acid ester derivative with ammonia at a temperature of -40°C to 30°C and then distilling or neutralizing unreacted ammonia at a temperature of -40°C to 30°C. The method for producing the optically active phenylethanolamine derivatives comprises reducing the optically active mandelamide derivative obtained by the above method. The method for producing the optically active phenylethanolamine derivatives comprises reducing an optically active mandelamide derivative with a reducing agent containing an acid and a metal borohydride.
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