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나이트로 화합물의 알칼리성 Sodiumborohydride에 依한 二液相還元에 關한 硏究
함희석 광주보건대학 1975 論文集 Vol.2 No.-
TWO phase reduction of representative nitrocompounds with alkaline stabilized Sodium borohydride solution was examined. Chloronitrobenzene and nitrotoluene were not reduced, but nitrophenol (0-, m-, p-) and Dinitrobenzene (0-, m-, p-), 2.4-dinitrochlorobenzene were reduced. As a result, when electron releasing power was smaller and electron attracting power was larger, these compounds were reduced. On nitrogroup was, however, reduced 25% in 12hr and 58% in 24hr. and nitrophenol were reduced 25% in 24hr. When two nitrogroup of dinitrobenzene (0-, m-, p-) and 2. Cdinitrobenzen were reduced, they were reduced 30% in 24hr.
피리딘-테트라히드로푸란 용매중에서 수소화붕소 나트륨에 의한 몇 가지 작용기를 갖는 유기화합물들의 환원반응
咸喜錫 광주보건대학 1976 論文集 Vol.3 No.-
The reduction of aliphatic and aromatic alcohols, aldehydes, ketones, styrene and ca rboxylic acids were examined with sodium borohydride in 2:1 pyridine-tetrabydrofuran Octyl alcohol and. phenol were consumed 1 eguivalent of hydride for hydrogen evolution in 24 hr. and 3 br. ,and butyraldehyde, benzaldehyde, cyclohexanone, :benzophenon e, acetophenone, 2-heptanone and styrene were consumed 1 equivalent of hydride for reluction without evolution of hydrogen'. Ethylacetate and ethylbenzoate were consumed 2 equivalents. Caproic acid and benzoic acid were requirei4 equivalents ,of .hydride, 1 equivalent for hydrogen evolution and 3 for reduction.
咸喜錫 광주보건대학 1981 論文集 Vol.6 No.-
The representative oximes of Acetone, Acetophenone, Benzophenone, Butyraldehyde, Benzaldehyde and Cyclohexanone were reduced with Aluminum Borohydride in tetrahydrofuran at room temperature. Acetoneoxime, Butyraldoxime and Cyclohexanone oxime were reduced into amines of 68.74 and 73%, which were only Primary. Benzophenone oxime was reduced into amine of 98%, and its Composition of primary and secondary were 56 and 44%. In case of acetophenone oxime, amine was obtained 74%, and its primary and seconary amines were 93 and 7% respectively. The yield of amine from the reduction of Benzaldoxime was 73%, and the primary one of amines produced was 91%
아세토니트릴 용매중에서 수소화붕소 나트륨에 의한 몇 가지 작용기를 갖는 유기화합물들의 환원
咸喜錫 광주보건대학 1978 論文集 Vol.4 No.-
The reduction of aliphatic and aromatic aldehydes, ketones, styrene, alcohols and carboxylic acids were examined with sodium borohydride in acetonitrile solvent. Benzaldehyde and butyraldehyde were consumed 1 equivalent of hydride for reduction without evolution of hydrogem in 1 hr. and 3 hr. Benzophenone and cyclohexanone, acetophenone, 2-heptanone and styrene were consumed. 1 equivalent of hydride for reduction without evolution of hydrogen in 24hr. 48br and 72hr. Benzoic acid and caproic acid were consumed 1 equivalernt of hydride for hydrogen evolution and 3 for reduction in 12hr. and 24hr. Ethylacetate and ethylbenzoate were reduced slightly without evolution of hydrogen. Octyl alcohol and phenol were not reduced and consumed I equivalent for evolution of hydrogen in 12hr.
알칼리성 수소화붕소나트륨 수용액에 의한 몇가지 벤즈알데히드유도체의 2액상환원
鄭萬泰,咸喜錫 광주보건대학 1980 論文集 Vol.5 No.-
Two phase redaction of metboxy, dimethylamino and nitro derivatives of benzaldehyde were reduced with alkaline aqueous sodium borohydride solution at room temperature. Three nitro isomers of benzaldehyde haw been rapidly to nitro-benzylalcohol within 1 hr> but p-methoxy benzaldhyde has been reduced moderately to methoxybenzylalcohol within 2hr., and p-dimethylaminobenzaldehyde has been reduced slowly to p-dimethy-laminobenylalcohol within 4hr. under the reaction condition.