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| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | |||
[求助]
翻譯摘要
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以4-叔丁基苯基乙炔、三乙基硅乙炔和1-二甲基胺-2-丙炔為起始原料，利用催化氧化方法合成了三種炔醛化合物，4-叔丁基苯基丙炔醛、三乙基硅丙炔醛和1-二甲基氨基-2-丁炔醛。以這三種炔醛為底物，以三乙胺做催化劑，與2,5-二羥基-1,4-二噻烷發(fā)生邁克爾加成反應(yīng)，合成了三種3-醛基-4-羥基噻吩化合物，分別為2-（（4-叔丁基）-苯基）-3-醛基 -4-羥基 -4,5-二氫噻吩，三乙基硅基-3-醛基 -4-羥基 -4,5-二氫噻吩，2-甲基氨基-3-醛基 -4-羥基 -4,5-二氫噻吩。對(duì)這些化合物結(jié)構(gòu)進(jìn)行了I R分析，初步證實(shí)了所得化合物為所需產(chǎn)物，此合成方法具有反應(yīng)條件溫和 , 產(chǎn)率較高的優(yōu)點(diǎn)。 翻譯成英文，謝謝 |
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【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
RXMCDM: 金幣+1 2014-05-17 00:00:46
安兒舞天間: 金幣+25, 翻譯EPI+1, ★★★很有幫助 2014-05-29 12:47:06
RXMCDM: 金幣+1 2014-05-17 00:00:46
安兒舞天間: 金幣+25, 翻譯EPI+1, ★★★很有幫助 2014-05-29 12:47:06
| Three alkyne aldehydes, 4-tert-butylphenyl propargyl aldehyde, triethylsilyl acetylene silicone-acrylic aldehyde and 1-dimethylamino-2-butynyl aldehyde , were synthesized from 4-tert-butylphenyl acetylene, triethylsilyl acetylene, and 1-dimethylamino-2- propyne by the catalytic oxidation method. Three kinds of 3 -formyl-4-hydroxy-thiophene compounds were prepared by the Micheal addition reaction of these alkyne aldehydes and 2,5 - dihydroxy -1,4- dithiane with triethylamine as catalyst. The products obtained from the addition reacrion were 2-[(4-tert-butyl)-phenyl]-3-formyl-4-hydroxy-4, 5- dihydrothiophene, triethylsilyl-3- formyl-4-hydroxy-4,5-dihydrothiophene, 2-methyl-3-formyl-4-hydroxy-4,5- dihydrothiophene. The structure of synthetic products was confirmed by IR. The proposed synthetic method was feasible in high yields under mild reaction condition. |
2樓2014-05-16 15:54:07
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