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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 |
| 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. |

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