1) DL-mandelic acid

DL-扁桃酸
1.
Study on synthesis of DL-mandelic acid;

DL-扁桃酸的合成工艺研究
2.
Methods: 1 Mixed d-pseudoephedrine and dl-mandelic acid in unhydrated alcohol ,add saturated Ca2+ solution, separate the precipitate and liquor ,get the d-and l-mandelic acid.
方法:1、将拆分剂d-伪麻黄碱与dl-扁桃酸混合,在无水乙醇中成盐,加入含Ca2+溶液,析出沉淀,分别对沉淀和母液进行处理,得到d-扁桃酸和l-扁桃酸粗品,用甲苯重结晶,获得光学纯d-扁桃酸和l-扁桃酸。
2) DL-Chloro phenyl glycollic acid

DL-邻氯扁桃酸
3) (S)-mandelic acid

(S)-扁桃酸
4) (S)-(+)-mandelic acid

(S)-(+)-扁桃酸
5) (R)-(–)-mandelic acid

(R)-(–)-扁桃酸
6) S-mandelic acid

S-扁桃酸
1.
S-mandelic acid was esterified to give a methyl ester,and then transesterified with methyl acetoacetate,for which process iodine was found to be a practical and useful Lewis acid catalyst.
报道了一种从S-扁桃酸出发拆分得到非洛地平的绿色合成新方法。
补充资料:DL-扁桃酸
分子式:C8H8O3
分子量:152.14
CAS号:611-72-3
性质:熔点120-122℃。
制备方法:暂无
用途:暂无
分子量:152.14
CAS号:611-72-3
性质:熔点120-122℃。
制备方法:暂无
用途:暂无
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条