A New Strategy for the Synthesisof γ-Nitro Alcohols from Aliphatic Nitro Compounds
作者:Sema L. Ioffe、Roman A. Kunetsky、Alexander D. Dilman、Konstantin P. Tsvaygboym、Yury A. Strelenko、Vladimir A. Tartakovsky
DOI:10.1055/s-2003-40203
日期:——
A general method for the synthesis of γ-nitro alcohols 1 via C-C-cross-coupling of nitro compounds 3 with silyl derivatives of nitro compounds 4, deoximination of resulting substrates and selective reduction of carbonyl group of ketones 2 is elaborated.
A New Synthetic Method for the Preparation of Ketones by Denitration of α-Nitro Ketones
作者:Noboru Ono、Masayuki Fujii、Aritsune Kaji
DOI:10.1055/s-1987-27995
日期:——
The sequence of acylation of nitroalkanes and subsequent denitration of the resulting α-nitro ketones provides a new and general method for the preparation of ketones.
硝基烷烃的酰化反应及其随后生成的一硝基酮的脱硝反应,提供了一种新的、普遍适用的酮制备方法。
Sequential Acylation/Silylation/Hetero‐Claisen Rearrangement of Nitroalkanes for the Synthesis of Protected Hydroxyoxime Derivatives
作者:Yulia A. Antonova、Sema L. Ioffe、Alexey Yu. Sukhorukov、Andrey A. Tabolin
DOI:10.1002/ejoc.202100469
日期:2021.6.14
One-pot acylation-silylation sequence was developed for the synthesis of protected hydroxyoximes from aliphatic nitro compounds. Procedure is characterized by wide substrate scope for nitro compounds, acylating and silylating agents.
Michael Additions Catalysed by N,N-dimethyl-3-aminopropyl - Derivatised Amorphous Silica and Hexagonal Mesoporous Silica (HMS)
作者:James E. G. Mdoe、James H. Clark、Duncan J. Macquarrie
DOI:10.1055/s-1998-1731
日期:1998.6
Solid bases prepared by derivatisation of amorphous silica and hexagonal mesoporous silica with dimethylaminopropyl groups are good catalysts for Michael addition reactions. Of the prepared catalysts, those based on hexagonal mesoporous silica show particularly high activities. The sol-gel method used in preparing the catalysts based on hexagonal mesoporous silica enables loading to be increased to more than twice that of those based on amorphous silica which are prepared by the post-modification method.
(Z)-Jasmone ,dihydrojasmone and other 3-methylcyclo=pent-2-en-1-ones are easily synthesized starting from aldehydes and 1-(2-methyl-1,3-dioxolane-2-yl)-2-nitroethane as reagent for 3-ketobutyl anion synthon. Nitro-aldol condensation is the chainlegthening reaction followed by oxidation and denitration via p-toluenesulfonylhydrazones of the corresponding α-nitroke=tones. Removal of protecting groups