翻訳と辞書 ・ 4,4'-Difluorobenzophenone
・ 4,4'-Dihydroxybenzophenone
・ 4,4'-Dimethylaminorex
・ 4,4'-Dinitro-3,3'-diazenofuroxan
・ 4,4'-Methylenebis(2-chloroaniline)
・ 4,4'-Methylenedianiline
・ 4,4'-Oxydianiline
・ 4,4'-Thiodianiline
・ 4,4′-Diamino-2,2′-stilbenedisulfonic acid
・ 4,5,6
・ 4,5-Diaminopyrimidine
・ 4,5-Dihydroorotic acid
・ 4,5-dihydroxyphthalate decarboxylase
・ 4,5-MDO-DiPT
・ 4,5-MDO-DMT
・ 4,7-Dihydroisoindole
・ 4,722 Hours
・ 4,7cm KPÚV vz. 36
・ 4-(2-carboxyphenyl)-2-oxobut-3-enoate aldolase
・ 4-(4-Methylphenyl)-4-oxobutanoic acid
・ 4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol kinase
・ 4-(dimethylamino)phenylazoxybenzene reductase
・ 4-(Gamma-L-glutamylamino)butanoyl-(BtrI acyl-carrier protein) monooxygenase
・ 4-(hydroxymethyl)benzenesulfonate dehydrogenase
・ 4-(γ-Glutamylamino)butanoic acid
・ 4-1-1
・ 4-10-0
・ 4-10-2
・ 4-1000A
・ 4-12-2
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| 4,7-Dihydroisoindole ： ウィキペディア英語版 |
4,7-Dihydroisoindole
4,7-Dihydroisoindole in heterocyclic chemistry is a reduced form of isoindole. 4,7-Dihydroisoindole is a useful building block for extended porphyrins which are relevant as materials for optical applications.
==Synthesis==
An early attempt to access 4,7-dihydroisoindole — the closest relative of thermodynamically unstable isoindole was performed 1985. It was based on the classical Paal-Knorr synthesis under conditions which probably harmed the electron-rich pyrrole ring. Observed instability of 4,7-dihydroisoindole led researchers to conclude that it was not a useful intermediate in the porphyrin chemistry.
It turned out that changing the conditions made it possible to isolate 4,7-dihydroisoindole. Three-step synthesis starting from tosylacetylene which includes Diels-Alder reaction, Barton-Zard synthesis and thermal decarboxylation was reported.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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