4-哌啶乙酮与取代苯甲醛在NaOH-Al₂O₃的催化下,通过微波照射进行Claisen-Schmidt缩合反应,生成香豆素。该化合物具有抗分枝杆菌活性。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1-(p-isopropenylphenyl)piperidine | 10471-65-5 | C14H19N | 201.312 |
4-氨基苯乙酮 | 4-Aminoacetophenone | 99-92-3 | C8H9NO | 135.166 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-氧代-2-[4-(1-哌啶基)苯基]乙醛一水合物 | oxo(4-piperidin-1-ylphenyl)acetaldehyde | 1171309-72-0 | C13H15NO2 | 217.268 |
2-溴-1-(4-(哌啶-1-基)苯基)乙酮 | 2-bromo-1-(4-(piperidin-1-yl)phenyl)ethan-1-one | 210832-84-1 | C13H16BrNO | 282.18 |
1-[4-(4-羟基哌啶-1-基)苯基]乙酮 | 1-(p-acetylphenyl)-4-hydroxypiperidine | 10342-87-7 | C13H17NO2 | 219.283 |
2,2-二溴-1-[4-(1-哌啶基)苯基]乙酮 | 2,2-dibromo-1-[4-(1-piperidinyl)phenyl]ethanone | 122831-01-0 | C13H15Br2NO | 361.076 |
—— | 2,2-dihydroxy-1-[4-(piperidin-1-yl)phenyl]ethan-1-one | 93290-93-8 | C13H17NO3 | 235.283 |
—— | 1-(p-ethylphenyl)piperidine | —— | C13H19N | 189.301 |
2-(4-哌啶-1-基苯基)乙醇 | 2-(4-(piperidin-1-yl)phenyl)ethan-1-ol | 55023-79-5 | C13H19NO | 205.3 |
1-(4-哌啶-1-苯基)-乙胺 | 1-(4-(piperidin-1-yl)phenyl)ethanamine | 869943-44-2 | C13H20N2 | 204.315 |
—— | 1-(p-isopropenylphenyl)piperidine | 10471-65-5 | C14H19N | 201.312 |
4-哌嗪苯甲酸 | 4-piperidin-1-yl-benzoic acid | 22090-24-0 | C12H15NO2 | 205.257 |
—— | 3,3-bis(methylsulfanyl)-1-(4-(piperidin-1-yl)phenyl)propenone | 914675-07-3 | C16H21NOS2 | 307.481 |
1-[4-(1-氧代-哌啶-1-基)-苯基]-乙酮 | 1-[4-(1-Oxidopiperidin-1-ium-1-yl)phenyl]ethanone | 106947-63-1 | C13H17NO2 | 219.283 |
—— | 4-dimethylamino-4'-(1-piperidyl)chalcone | 1421637-59-3 | C22H26N2O | 334.461 |
—— | 2-(4-piperidin-1-yl-phenyl)-propan-2-ol | 52414-60-5 | C14H21NO | 219.327 |
—— | (E)-3-(4-hydroxyphenyl)-1-(4-piperidin-1-ylphenyl)prop-2-en-1-one | 1421637-60-6 | C20H21NO2 | 307.392 |
—— | 3-(4-chlorophenyl)-1-(4-piperidinophenyl)-2-propen-1-one | —— | C20H20ClNO | 325.838 |
—— | (2E)-3-(4-methoxyphenyl)-1-[4-(1-piperidinyl)phenyl]-2-propen-1-one | 1290041-51-8 | C21H23NO2 | 321.419 |
—— | (E)-1-(4-(piperidin-1-yl)phenyl)-3-(pyridin-3-yl)prop-2-en-1-one | —— | C19H20N2O | 292.381 |
—— | (E)-1-(4-(piperidin-1-yl)phenyl)-3-(pyridin-2-yl)prop-2-en-1-one | —— | C19H20N2O | 292.381 |
—— | (2E)-3-(2,4-dichlorophenyl)-1-[4-(1-piperidinyl)phenyl]-2-propen-1-one | —— | C20H19Cl2NO | 360.283 |
—— | (2E)-3-(3-nitrophenyl)-1-[4-(piperidin-1-yl)phenyl]prop-2-en-1-one | 1393359-04-0 | C20H20N2O3 | 336.39 |
—— | (E)-3-(3,4-dimethoxyphenyl)-1-(4-piperidin-1-ylphenyl)prop-2-en-1-one | 1421637-58-2 | C22H25NO3 | 351.445 |
—— | (E)-3-(2,5-dimethoxyphenyl)-1-[4-(1-piperidyl)phenyl]prop-2-en-1-one | 1393645-62-9 | C22H25NO3 | 351.445 |
—— | (E)-1-(4-piperidin-1-ylphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one | 1050196-83-2 | C23H27NO4 | 381.472 |
The mercury-edta dehydrogenation of the 4′-aminosubstituted-acetophenones 1, 8a and 9a produced the ring cleavaged derivatives 7 ,11a and 12a, while the piperidine and its derivatives 10a - 10e gave rise to tetracyclic compounds 16a - 16e and to methylenedi-enamines 19a - 19d, the additionally C-1-fragment in 19a - 19d probably coming from mercury edta. With addition of m-nitrobenzaldehyde to the mercury-edta dehydrogenation of substituted phenylpiperidines another route only generated the di-enamines 22.
在汞-EDTA脱氢反应中,4'-氨基取代的苯乙酮1、8a和9a生成了开环衍生物7、11a和12a,而哌啶及其衍生物10a-10e则产生了四环化合物16a-16e和亚甲基二烯胺19a-19d,19a-19d中额外的C-1片段可能来自汞EDTA。当将间硝基苯甲醛加入取代的苯基哌啶的汞-EDTA脱氢反应中时,另一条路径只生成了二烯胺22。