D-扁桃酸是一种极性分子,由于其含有羟基和羧基,具有一定的亲水性。作为手性分子,D-扁桃酸的物理化学性质受其立体结构的影响。此外,D-扁桃酸的酸碱性质也因其分子结构而异,其羧基的酸性较弱,这是因为手性碳原子上的羟基取代了氢原子,降低了负电荷的共振稳定性。从化学反应的角度来看,D-扁桃酸的手性结构对其产物的手性也有影响。这种手性性质在有机合成中具有重要意义,可用于制备手性分子的药物和化学品。
合成将(2R,5R)-2,5-二苯基恶唑烷-4-酮(87 mg,0.36 mmol)溶解于12 M HCl (3.6 mL)中,在100℃下加热并搅拌反应16小时。反应结束后冷却至室温,并用10 mL水稀释,使用乙酸乙酯萃取三次,合并的有机相经无水硫酸镁干燥后过滤。除去干燥剂并将所得滤液在真空下减压浓缩,通过热氯仿重结晶可得到D-扁桃酸。
D-(-)-Mandelic acid 是从苦杏仁中提取的天然产物。
化学性质白色结晶性粉末,能溶于甲醇、乙醇、DMSO等有机溶剂,来源于苦杏仁。
用途中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
扁桃酸 | MANDELIC ACID | 90-64-2 | C8H8O3 | 152.15 |
(S)-(+)-扁桃酸 | (S)-Mandelic acid | 17199-29-0 | C8H8O3 | 152.15 |
(R)-(-)-扁桃酸甲酯 | (R)-methyl mandelate | 20698-91-3 | C9H10O3 | 166.177 |
DL-扁桃酸甲酯 | (RS)-methyl mandelate | 4358-87-6 | C9H10O3 | 166.177 |
对氯扁桃酸 | p-chloromandelic acid | 492-86-4 | C8H7ClO3 | 186.595 |
扁桃酸乙酯 | hydroxy-phenyl-acetic acid ethyl ester | 774-40-3 | C10H12O3 | 180.203 |
—— | (R)-2-hydroxy-2-phenylacetaldehyde | 34025-29-1 | C8H8O2 | 136.15 |
(R)-1-苯基-1,2-乙二醇 | (R)-1-Phenyl-1,2-ethanediol | 16355-00-3 | C8H10O2 | 138.166 |
苯基乙二醇 | phenylethane 1,2-diol | 93-56-1 | C8H10O2 | 138.166 |
DL-阿卓乳酸半水物 | 2-phenyllactic acid | 515-30-0 | C9H10O3 | 166.177 |
—— | (R)-2-(3-fluorophenyl)-2-hydroxyacetic acid | —— | C8H7FO3 | 170.14 |
苯乙酸 | phenylacetic acid | 103-82-2 | C8H8O2 | 136.15 |
氧化苯乙烯 | styrene oxide | 96-09-3 | C8H8O | 120.151 |
(R)-2-乙酰氧基-2-苯乙酸 | (R)-(-)-O-acetylmandelic acid | 51019-43-3 | C10H10O4 | 194.187 |
—— | 2-acetoxy-2-phenylacetic acid | 29071-09-8 | C10H10O4 | 194.187 |
(±)-扁桃酰胺 | (RS)-mandelamide | 4410-31-5 | C8H9NO2 | 151.165 |
2-羟基-2-苯基乙酰胺 | (2R)-mandelamide | 24008-62-6 | C8H9NO2 | 151.165 |
—— | 2-hydroxy-2-phenylmalonic acid | —— | C9H8O5 | 196.16 |
—— | methyl O-acetylmandalate | 86561-27-5 | C11H12O4 | 208.214 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
扁桃酸 | MANDELIC ACID | 90-64-2 | C8H8O3 | 152.15 |
(S)-(+)-扁桃酸 | (S)-Mandelic acid | 17199-29-0 | C8H8O3 | 152.15 |
(R)-(-)-扁桃酸甲酯 | (R)-methyl mandelate | 20698-91-3 | C9H10O3 | 166.177 |
DL-扁桃酸甲酯 | (RS)-methyl mandelate | 4358-87-6 | C9H10O3 | 166.177 |
(R)-(-)-α-甲氧基苯乙酸 | (R)-methoxyphenylacetic acid | 3966-32-3 | C9H10O3 | 166.177 |
(S)-(+)-alpha-甲氧基苯乙酸 | (S)-2-methoxy-2-phenylacetic acid | 26164-26-1 | C9H10O3 | 166.177 |
D-(-)-扁桃酸乙酯 | (R)-mandelic acid ethyl ester | 10606-72-1 | C10H12O3 | 180.203 |
L-(+)-扁桃酸乙酯 | (S)-(-)-ethyl mandelate | 13704-09-1 | C10H12O3 | 180.203 |
(R)-1-苯基-1,2-乙二醇 | (R)-1-Phenyl-1,2-ethanediol | 16355-00-3 | C8H10O2 | 138.166 |
—— | (R)-2-ethoxy-2-phenylacetic acid | 33224-99-6 | C10H12O3 | 180.203 |
(R)-(甲酰氧基)苯基乙酸 | (R)-formiloxy(phenyl)acetic acid | 29169-63-9 | C9H8O4 | 180.16 |
(R)-(-)-2-甲氧基-2-苯乙酸甲酯 | methyl (R)-(-)-2-methoxy-2-phenylacetate | 32174-46-2 | C10H12O3 | 180.203 |
普瑞巴林杂质19 | (R)-isopropyl 2-hydroxy-2-phenylacetate | 89015-27-0 | C11H14O3 | 194.23 |
—— | O,O'-dideuterio-D-mandelic acid | —— | C8H8O3 | 154.134 |
(R)-扁桃酸正丁酯 | (R)-mandelic acid n-butyl ester | 119656-72-3 | C12H16O3 | 208.257 |
—— | isopropenyl (R)-mandelate | —— | C11H12O3 | 192.214 |
扁桃酸苯酯 | benzyl (R)-(-)-mandelate | 97415-09-3 | C15H14O3 | 242.274 |
—— | (-)-(R)-2-methoxy-2-phenylacetaldehyde | 72538-27-3 | C9H10O2 | 150.177 |
(R)-(-)-2-甲氧基-2-苯乙醇 | R-(-)-2-methoxy-2-phenyl ethanol | 17628-72-7 | C9H12O2 | 152.193 |
(S)-(+)-2-甲氧基-3-苯乙醇 | (S)-2-methoxy-2-phenylethanol | 66051-01-2 | C9H12O2 | 152.193 |
苯乙酸 | phenylacetic acid | 103-82-2 | C8H8O2 | 136.15 |
(R)-2-乙酰氧基-2-苯乙酸 | (R)-(-)-O-acetylmandelic acid | 51019-43-3 | C10H10O4 | 194.187 |
(R)-1-羟基-1-苯基丙酮 | (R)-1-hydroxy-1-phenyl-2-propanone | 1798-60-3 | C9H10O2 | 150.177 |
—— | methyl (R)-(methoxymethoxy)(phenyl)ethanoate | 211614-43-6 | C11H14O4 | 210.23 |
2-羟基-2-苯基乙酰胺 | (2R)-mandelamide | 24008-62-6 | C8H9NO2 | 151.165 |
—— | ethyl (R)-2-ethoxy-2-phenylacetate | —— | C12H16O3 | 208.257 |
—— | (R)-Benzyloxymethoxy-phenyl-acetic acid methyl ester | 171032-44-3 | C17H18O4 | 286.328 |
—— | (R)-β-ethoxy-phenethyl alcohol | 36747-96-3 | C10H14O2 | 166.22 |
—— | methyl (R)-2-benzyloxy-2-phenylacetate | 133420-97-0 | C16H16O3 | 256.301 |
(S)-(-)-1-苯乙醇 | (S)-1-phenylethanol | 1445-91-6 | C8H10O | 122.167 |
—— | (R)-2-methyloxymethoxy-2-phenyl-1-ethanol | 269402-51-9 | C10H14O3 | 182.219 |
—— | (R)-propionyloxy-phenyl-acetic acid | 80672-45-3 | C11H12O4 | 208.214 |
—— | (R)-2-(benzyloxy)-2-phenylacetaldehyde | 87604-57-7 | C15H14O2 | 226.275 |
—— | methyl [2-2H]-(R)-mandalate | —— | C9H10O3 | 167.169 |
—— | (-)-(R)-2-phenoxy-2-phenylacetic acid | 950993-21-2 | C14H12O3 | 228.247 |