肼基甲酸叔丁酯是一种非常重要的中间体,广泛应用于药物、高分子化合物和染料工业。它也是合成酰肼基衍生物的重要原料。
性状肼基甲酸叔丁酯为白色至淡黄色的结晶性粉末。
应用该化合物主要用于合成具有高活性的酰肼基衍生物,其中一些衍生物在治疗肺结核、帕金森病和高血压方面表现出良好的疗效。此外,还有部分酰肼基衍生物具有保护神经系统的作用,并被用于抗抑郁症药物的开发。
制备方法叔丁基苯基碳酸酯的合成
在氮气保护下,将75g叔丁醇、87g吡啶和200g三氯甲烷加入反应釜内,搅拌均匀后滴加158.7g氯甲酸苯酯。循环水冷却控制釜温在28~31℃之间,约1小时滴完,再搅拌3小时。随后滴加70mL水溶解吡啶盐酸盐,待固体完全溶解后将反应液转入1000mL分液漏斗中,分离上层水分掉。用5%盐酸洗涤有机层并减压蒸馏回收氯仿,最终得到叔丁基苯基碳酸酯149.6g,纯度为95.3%,收率为77%。
肼基甲酸叔丁酯的合成
向反应釜中加入122g80%水合肼溶液并控制釜温在80℃。随后将上步所得的叔丁酯苯基碳酸酯全部滴加到反应釜内,滴加完毕后升温至100℃保温搅拌1小时;再向反应釜内加入352g氯仿,继续搅拌3小时;将温度降至25~30℃之间,滴加480g10%氢氧化钠溶液中和苯酚生成酚钠。将反应液转入分液漏斗中分离上层水分掉,并用氯仿萃取水层后用水洗涤有机层。合并有机层并蒸馏回收氯仿,然后用石油醚重结晶保温放料,室温风干5小时后得到白色晶体96.4g,纯度为98.8%,收率为93%。总计两步总收率为71.7%。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
氨基甲酸叔丁酯 | tert-butyl carbamate | 4248-19-5 | C5H11NO2 | 117.148 |
2-甲基-2-丙基硝基氨基甲酸酯 | tert-Butyl-N-nitrourethan | 68058-85-5 | C5H10N2O4 | 162.145 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-Boc-2-甲基肼 | tert-butyl 2-methylhydrazine-1-carboxylate | 127799-54-6 | C6H14N2O2 | 146.189 |
—— | tert-butyl N-(methylideneamino)carbamate | 99132-72-6 | C6H12N2O2 | 144.173 |
2-甲基-2-丙基2,2-二甲基肼羧酸酯 | tert-butyl 2,2-dimethyl-1-hydrazinecarboxylate | 160513-29-1 | C7H16N2O2 | 160.216 |
2-甲基-2-丙基2-乙基肼羧酸酯 | tert-butyl 2-ethylhydrazinecarboxylate | 476362-41-1 | C7H16N2O2 | 160.216 |
—— | N'-ethylidenehydrazinecarboxylic acid tert-butyl ester | —— | C7H14N2O2 | 158.2 |
2-甲基-2-丙基(2E)-2-亚乙基肼羧酸酯 | tert-butyl 2-ethylidenehydrazinecarboxylate | 56572-28-2 | C7H14N2O2 | 158.2 |
1-Boc-1-甲基肼 | 1-methyl-1-tert-butoxycarbonylhydrazine | 21075-83-2 | C6H14N2O2 | 146.189 |
—— | N-t-butoxycarbonyl-azaglycine ethyl ester | 69295-67-6 | C8H16N2O4 | 204.226 |
二叔丁基叠氮草酸 | 1,2-bis(t-butyloxycarbonyl)hydrazine | 16466-61-8 | C10H20N2O4 | 232.28 |
2-{[(2-甲基-2-丁烷基)氧基]羰基}肼羧酸 | tert-butyl methyl hydrazine-1,2-dicarboxylate | 24537-38-0 | C7H14N2O4 | 190.199 |
1-Boc-2-异丙基肼 | tert-butyl 2-(isopropyl)hydrazinecarboxylate | 16689-35-3 | C8H18N2O2 | 174.243 |
2-甲基-2-丙基2-丙基肼羧酸酯 | N'-propylhydrazinecarboxylic acid tert-butyl ester | 112383-13-8 | C8H18N2O2 | 174.243 |
—— | 1-t-Butoxycarbonyl-2(2-hydroxyethyl)hydrazine | —— | C7H16N2O3 | 176.216 |
2-甲基-2-丙基2-烯丙基肼羧酸酯 | tert-butyl 2-allylhydrazinecarboxylate | 192725-90-9 | C8H16N2O2 | 172.227 |
2-甲基-2-丙基2-(2-丙炔-1-基)肼羧酸酯 | N-propargyl tert-butyl carbazate | 406683-19-0 | C8H14N2O2 | 170.211 |
2-甲基-2-丙基(2E)-2-亚丙基肼羧酸酯 | 1-tert-butoxycarbonyl-2-propylidenehydrazine | 112383-12-7 | C8H16N2O2 | 172.227 |
2-甲基-2-丙基2-异亚丙基肼羧酸酯 | tert-butyl isopropylidenecarbazate | 16689-34-2 | C8H16N2O2 | 172.227 |
—— | tert-butyl N-(diaminomethylideneamino)carbamate | —— | C6H14N4O2 | 174.203 |
—— | tert-Butyl 2-(2-methoxyethyl)hydrazinecarboxylate | 1292303-78-6 | C8H18N2O3 | 190.243 |
—— | tert-butyl 2-isobutylhydrazinecarboxylate | 57699-53-3 | C9H20N2O2 | 188.27 |
2-甲基-2-丙基2-丁基肼羧酸酯 | N'-butylhydrazinecarboxylic acid tert-butyl ester | 149268-06-4 | C9H20N2O2 | 188.27 |
—— | glyoxal di(t-butoxycarbonylhydrazone) | 80805-25-0 | C12H22N4O4 | 286.331 |
—— | tert-butyl N-[(E)-[(2E)-2-[(2-methylpropan-2-yl)oxycarbonylhydrazinylidene]ethylidene]amino]carbamate | —— | C12H22N4O4 | 286.33 |
—— | N'-(2-methylpropylidene)hydrazinecarboxylic acid tert-butyl ester | 57699-46-4 | C9H18N2O2 | 186.254 |
2-甲基-2-丙基2-乙酰基肼羧酸酯 | N'-acetylhydrazinecarboxylic acid tert-butyl ester | 90271-04-8 | C7H14N2O3 | 174.2 |
—— | tert-butyl (but-3-en-1-yl)hydrazinecarboxylate | 1620320-17-3 | C9H18N2O2 | 186.254 |
—— | N'-[2-Methyl-prop-(Z)-ylidene]-hydrazinecarboxylic acid tert-butyl ester | 57699-46-4 | C9H18N2O2 | 186.254 |
2-甲基-2-丙基(2E)-2-丁亚基肼羧酸酯 | N'-butylidene-hydrazinecarboxylic acid tert-butyl ester | 149268-07-5 | C9H18N2O2 | 186.254 |
2-甲基-2-丙基(2E)-2-丁亚基肼羧酸酯 | tert-butyl 2-butylidenehydrazinecarboxylate | 149268-07-5 | C9H18N2O2 | 186.254 |
N-羟基氨基甲酸叔丁酯 | tert-Butyl N-hydroxycarbamate | 36016-38-3 | C5H11NO3 | 133.147 |
—— | tert-butyl 2-(2,2-dimethylpropyl)hydrazinecarboxylate | 864439-24-7 | C10H22N2O2 | 202.297 |
2-甲基-2-丙基2-戊基肼羧酸酯 | t-butyl-2-pentylhydrazincarboxylate | 397870-04-1 | C10H22N2O2 | 202.297 |
肼羧酸,2-(3-甲基丁基)-,1,1-二甲基乙基酯(9CI) | N'-(3-methylbutyl)hydrazinecarboxylic acid tert-butyl ester | 180462-81-1 | C10H22N2O2 | 202.297 |
—— | N'-pent-4-enyl-hydrazinecarboxylic acid tert-butyl ester | 959434-76-5 | C10H20N2O2 | 200.281 |
—— | N'-(2,2-dimethylpropylidene)hydrazinecarboxylic acid tert-butyl ester | —— | C10H20N2O2 | 200.281 |
—— | 1-[tert-butyloxycarbonyl]thiosemicarbazide | —— | C6H13N3O2S | 191.254 |
2-甲基-2-丙基(2E)-2-戊亚基肼羧酸酯 | t-butyl-2-pentylidenhydrazinecarboxylate | 397870-05-2 | C10H20N2O2 | 200.281 |
1-boc-1-乙基肼 | tert-butyl 1-ethylhydrazine-1-carboxylate | 955370-01-1 | C7H16N2O2 | 160.216 |
—— | N'-cyclopropyl-hydrazinecarboxylic acid tert-butyl ester | —— | C8H16N2O2 | 172.227 |
N-Boc-2-(1-亚氨基乙基)肼 | tert-butyl 2-ethanimidoylhydrazinecarboxylate | 851535-08-5 | C7H15N3O2 | 173.215 |
—— | 2-[2-(tert-butoxycarbonyl)hydrazono]acetic acid | 1072934-75-8 | C7H12N2O4 | 188.183 |
—— | tert-butyl 2-(2-amino-2-oxoethyl)hydrazinecarboxylate | 23354-15-6 | C7H15N3O3 | 189.214 |
—— | 2,2-diethylhydrazinecarboxylic acid 1,1-dimethylethyl ester | 55741-06-5 | C9H20N2O2 | 188.27 |
(2-{[(2-甲基-2-丙基)氧基]羰基}肼基)乙酸 | 2-[2-(tert-butoxycarbonyl)hydrazinyl]acetic acid | 115262-99-2 | C7H14N2O4 | 190.199 |
—— | tert-butyl 2-(2,2,2-trifluoroethyl)hydrazinecarboxylate | —— | C7H13F3N2O2 | 214.188 |
—— | tert-butyl 2-(hex-5-en-1-yl)hydrazinecarboxylate | 924289-35-0 | C11H22N2O2 | 214.308 |
—— | tert-butyl N2-nonylcarbazate | 1298023-43-4 | C14H30N2O2 | 258.404 |
2-甲基-2-丙基2-(3-氨基-3-氧代丙基)肼羧酸酯 | 3-(N'-tert-butoxycarbonylhydrazino)propanamide | 133382-89-5 | C8H17N3O3 | 203.241 |
—— | tert-butyl 2-(hex-5-enylidene)hydrazinecarboxylate | 1429521-37-8 | C11H20N2O2 | 212.292 |
—— | tert-butyl N-(hydrazinecarbonylamino)carbamate | 64512-90-9 | C6H14N4O3 | 190.202 |
2-甲基-2-丙基2-(3-戊烷基)肼羧酸酯 | N'-(1-ethylpropyl)hydrazinecarboxylic acid tert-butyl ester | 184177-78-4 | C10H22N2O2 | 202.297 |
—— | N'-[1-cyclopropyl-methylidene]-hydrazinecarboxylic acid tert-butyl ester | 1187368-92-8 | C9H16N2O2 | 184.238 |