D-(−)-Pantolactone 是 pantothenic acid 的降解产物。pantothenic acid 是一种水溶性必需维生素。
化学性质D-(−)-Pantolactone 是吸湿性结晶(在苯/石油醚中,或升华得到)。其熔点为 80°C (92°C),沸点为 130°C / 2.4kPa。该物质易溶于水,也溶于乙醇、乙醚、氯仿和二硫化碳,并能溶解在苯中。R 型的熔点为 92°C,旋光度 [α] -50.7°(C=2.05, H2O),而 S 型的熔点为 91°C,旋光度 [α] +50°(C=2.00, H2O)。
用途D-(−)-Pantolactone 主要用作混旋泛酸钙的中间体,并用于合成 D-泛酸钙和 D-泛醇。此外,它还用作医药中间体。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
DL-泛酰内酯 | pantolactone | 79-50-5 | C6H10O3 | 130.144 |
(S)-(+)-泛解酸内酯 | (S)-pantolactone | 5405-40-3 | C6H10O3 | 130.144 |
—— | (R)-acetic acid 4,4-dimethyl-2-oxo-tetrahydrofuran-3-yl ester | 28227-36-3 | C8H12O4 | 172.181 |
—— | (RS)-2-acetoxy-3,3-dimethyl-γ-butyrolactone | 28227-35-2 | C8H12O4 | 172.181 |
Γ-二甲基丁内酯 | Pantoyllacton | 13861-97-7 | C6H10O2 | 114.144 |
—— | (R)-ethyl 2-hydroxy-3,3-dimethyl-4-oxobutanoate | 1196498-52-8 | C8H14O4 | 174.197 |
泛醇杂质B | D-pantoic acid | 1112-33-0 | C6H12O4 | 148.159 |
—— | O-benzyl-(R)-pantolactone | 20374-33-8 | C13H16O3 | 220.268 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
(S)-(+)-泛解酸内酯 | (S)-pantolactone | 5405-40-3 | C6H10O3 | 130.144 |
DL-泛酰内酯 | pantolactone | 79-50-5 | C6H10O3 | 130.144 |
—— | (3R)-3-Methoxy-4,4-dimethyloxolan-2-one | 42411-49-4 | C7H12O3 | 144.17 |
—— | 3-methoxy-4,4-dimethyldihydrofuran-2-(3H)-one | 100101-82-4 | C7H12O3 | 144.17 |
—— | 3-hydroxy-3,4,4-trimethyldihydrofuran-2(3H)-one | 170996-47-1 | C7H12O3 | 144.17 |
—— | (R)-(+)-O-vinyl pantolactone | 207557-91-3 | C8H12O3 | 156.181 |
—— | 3R-(-)-dihydro-4,4-dimethyl-3-<(methoxymethyl)oxy>-2(3H)-furanone | 165450-30-6 | C8H14O4 | 174.197 |
—— | (R)-acetic acid 4,4-dimethyl-2-oxo-tetrahydrofuran-3-yl ester | 28227-36-3 | C8H12O4 | 172.181 |
—— | (RS)-2-acetoxy-3,3-dimethyl-γ-butyrolactone | 28227-35-2 | C8H12O4 | 172.181 |
—— | (S)-2-acetoxy-3,3-dimethyl-γ-butyrolactone | 28387-34-0 | C8H12O4 | 172.181 |
Γ-二甲基丁内酯 | Pantoyllacton | 13861-97-7 | C6H10O2 | 114.144 |
—— | 1-[(R)-dihydro-4,4-dimethyl-2(3H)-furanone-3-yl]oxychloroformate | 195726-76-2 | C7H9ClO4 | 192.599 |
—— | (R)-4,4-dimethyl-2-oxotetrahydrofuran-3-yl propiolate | —— | C9H10O4 | 182.176 |
—— | (2R)-2-methylbutyryl-R-pentolactone | 136010-96-3 | C11H18O4 | 214.262 |
—— | (2S)-2-methylbutyryl-R-pentolactone | 136010-95-2 | C11H18O4 | 214.262 |
(R)-α-丙烯酰基氧基-β,β-二甲基-γ-丁内酯 | (R)-4,4-dimethyl-2-oxotetrahydrofuran-3-yl acrylate | 102096-60-6 | C9H12O4 | 184.192 |
—— | (R)-4,4-dimethyl-2-oxotetrahydrofuran-3-yl 3-oxobutanoate | 186899-17-2 | C10H14O5 | 214.218 |
—— | (3R)-3-(1-ethoxyethoxy)-4,4-dimethyloxolan-2-one | —— | C10H18O4 | 202.251 |
泛醇杂质B | D-pantoic acid | 1112-33-0 | C6H12O4 | 148.159 |
—— | (R)-(E)-but-2-enoic acid 4,4-dimethyl-2-oxotetrahydrofuran-3-yl ester | 126983-27-5 | C10H14O4 | 198.219 |
—— | 2-butynoic acid (R)-pantolactone ester | —— | C10H12O4 | 196.203 |
—— | (R)-Dimethyl-2-hydroxy-3,3-dimethylsuccinat | 37887-82-4 | C8H14O5 | 190.196 |
—— | (E)-3-bromoacrylate of (R)-pantolactone | 126983-28-6 | C9H11BrO4 | 263.088 |
—— | [(3R)-4,4-dimethyl-2-oxooxolan-3-yl] (E)-hex-3-enoate | 187950-73-8 | C12H18O4 | 226.273 |
—— | [(3R)-4,4-dimethyl-2-oxooxolan-3-yl] (Z)-hex-3-enoate | 187950-74-9 | C12H18O4 | 226.273 |
—— | (3R)-4,4,-dimethyl-3-(oct-1-yn-3-yloxy)dihydrofuran-2(3H)-one | 1138163-64-0 | C14H22O3 | 238.327 |
—— | 2-Bromo-propionic acid (R)-4,4-dimethyl-2-oxo-tetrahydro-furan-3-yl ester | 690271-97-7 | C9H13BrO4 | 265.104 |
—— | (R)-4,4-dimethyl-2-oxotetrahydrofuran-3-yl methacrylate | —— | C10H14O4 | 198.219 |
—— | O-benzyl-(R)-pantolactone | 20374-33-8 | C13H16O3 | 220.268 |
—— | (S)-3-(benzyloxy)-4,4-dimethyldihydrofuran-2(3H)-one | —— | C13H16O3 | 220.268 |