Potential Synthetic Adaptogens: V. Synthesis of Cage Monoamines by the Schwenk–Papa Reaction
摘要:
The reduction of cage ketoximes under Schwenk-Papa reaction conditions was studied to establish that the D,L, D- and L-camphor oximes are smoothly reduced to the corresponding amines in high yields. At the same time, D,L-norcamphor and adamantan-2-one oximes undergo partial catalytic deoximation to form a mixture of the corresponding amines and alcohols.
Potential Synthetic Adaptogens: V. Synthesis of Cage Monoamines by the Schwenk–Papa Reaction
摘要:
The reduction of cage ketoximes under Schwenk-Papa reaction conditions was studied to establish that the D,L, D- and L-camphor oximes are smoothly reduced to the corresponding amines in high yields. At the same time, D,L-norcamphor and adamantan-2-one oximes undergo partial catalytic deoximation to form a mixture of the corresponding amines and alcohols.
Asymmetrische reduktive Aminierung von Cycloalkanonen, 3. Mitt. Der Einfluß von Katalysator und Reduktionsmittel auf die Diastereo- und Enantioselektivität
作者:Gerd Knupp、August W. Frahm
DOI:10.1002/ardp.19853180313
日期:——
Es wurde die Abhängigkeit der Diastereo‐ und Enantioselektivität bei der asymmetrischen reduktiven Aminierung racemischen 2‐Methylcyclohexanons (1) von der Art der verwendeten Katalysatoren und Reduktionsmittel untersucht. Die Diastereo‐ und Enantioselektivität wurden 13C‐NMR‐spektroskopisch bestimmt. Dabei erweist sich Raney Ni als Katalysator der Wahl. Dagegen lassen sich die entsprechenden Campherazomethine
研究了外消旋 2-甲基环己酮 (1) 的不对称还原胺化中的非对映选择性和对映选择性对所用催化剂和还原剂类型的依赖性。非对映选择性和对映选择性通过 13C NMR 光谱测定。事实证明,Raney Ni 是首选的催化剂。相比之下,相应的樟脑偶氮甲碱5只能与Pd/C加氢,同时氢解得到2-外-氨基冰片烷6。
Synthesis of New Camphane-Type Amides: Potential Synthetic Adaptogenes
作者:I. A. Novakov、R. V. Brunilin、G. M. Butov、A. A. Vernigora、M. B. Navrotskii、A. S. Yablokov、S. N. Voloboev
DOI:10.1134/s1070363219030058
日期:2019.3
A significant effect of the steric factor on the activity of 3,5-dimethyl-1H-pyrazolide as an acylating agent has been found using the example of acylation of camphane-type monoamines. The predominant contribution of the catalytic hydrogenation as a component of the Schwenk-Papa reaction has been confirmed by the synthesis of 4-chlorobenzoyl derivatives.
Microbial transformations. Part 7 (1) Biohydroxylation of bornylamide derivatives by the fungus beauveria sulfurescens