3-噻吩乙酸是一种有机中间体,有文献报道它可用于制备一种电磁屏蔽聚酰胺材料。
制备3-噻吩乙酸可由3-噻吩乙腈通过强碱水解得到。具体步骤如下:
将1.0 g(8.1 mmol)的3-噻吩乙腈溶解在40-60 mL的EtOH/H2O混合物(体积比为1:1)中,加入约10倍过量的固体KOH,然后加热至90℃。反应进行3小时后,在减压下蒸馏出乙醇,将含水残余物稀释至100 mL,并用CH2Cl2(共萃取三次,每次50 mL)萃取。随后,使用2N HCl调节水相的pH值为4-5,再次用 (共萃取三次,每次50 mL)进行萃取。最后,有机相经过Na2SO4干燥并蒸发至干,得到1.1 g的产品(理论产率为94%),产物为米色无定形固体,在74-76℃下分解。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
噻吩-3-乙酸乙酯 | ethyl 3-thienylacetate | 37784-63-7 | C8H10O2S | 170.232 |
噻吩-3-乙酸异丙酯 | thiophen-3-yl-acetic acid i-propyl ester | 53064-74-7 | C9H12O2S | 184.259 |
—— | Tert-butyl 2-thiophen-3-ylacetate | 58416-26-5 | C10H14O2S | 198.286 |
—— | 2-(thiophene-3-yl) acetamide | 13781-66-3 | C6H7NOS | 141.194 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
噻吩-3-乙酸甲酯 | thiophen-3-yl-acetic acid methyl ester | 58414-52-1 | C7H8O2S | 156.205 |
噻吩-3-乙酸乙酯 | ethyl 3-thienylacetate | 37784-63-7 | C8H10O2S | 170.232 |
噻吩-3-乙酸异丙酯 | thiophen-3-yl-acetic acid i-propyl ester | 53064-74-7 | C9H12O2S | 184.259 |
噻吩-3-乙醇 | 3-(2-hydroxyethyl)thiophene | 13781-67-4 | C6H8OS | 128.195 |
—— | 2-Chloroethyl 2-thiophen-3-ylacetate | 477282-74-9 | C8H9ClO2S | 204.677 |
—— | 2-(3-Thienyl)propanoic acid | 78239-46-0 | C7H8O2S | 156.205 |
—— | Tert-butyl 2-thiophen-3-ylacetate | 58416-26-5 | C10H14O2S | 198.286 |
3-噻吩基乙酸丁酯 | thiophen-3-yl-acetic acid n-butyl ester | 94023-52-6 | C10H14O2S | 198.286 |
—— | 2-bromo-(3-thienyl)-acetic acid | 174454-41-2 | C6H5BrO2S | 221.075 |
2-(2-氯噻吩-3-基)乙酸 | 2-(2-chlorothiophen-3-yl)acetic acid | 188718-23-2 | C6H5ClO2S | 176.624 |
—— | 2-(thiophen-3-yl)propan-1-ol | 191725-80-1 | C7H10OS | 142.222 |
—— | methyl 2-(2-bromothiophen-3-yl)acetate | 683251-61-8 | C7H7BrO2S | 235.101 |
—— | 2-{[2-(3-thienyl)acetyl]oxy}ethyl methacrylate | 813414-05-0 | C12H14O4S | 254.307 |
—— | 1-(3-thienyl)propan-2-ol | 62119-78-2 | C7H10OS | 142.222 |
1-噻吩-3-基-丙烷-2-酮 | 1-(3-thienyl)propan-2-one | 62119-77-1 | C7H8OS | 140.206 |
2-噻吩-3-基-丙醛 | 2-(thiophen-3-yl)propanal | 65857-58-1 | C7H8OS | 140.206 |
噻吩-3-基-乙酰氯 | 2-(thiophen-3-yl)acetyl chloride | 13781-65-2 | C6H5ClOS | 160.624 |
—— | 2-(thiophene-3-yl) acetamide | 13781-66-3 | C6H7NOS | 141.194 |
2-(2-溴噻吩-3-基)乙酸乙酯 | ethyl 2-(2-bromothiophen-3-yl)acetate | 720662-89-5 | C8H9BrO2S | 249.128 |
—— | 3-[2-[(2S)-2-methylbutoxy]ethyl]thiophene | 156122-67-7 | C11H18OS | 198.329 |