One-pot synthesis of azabicyclic peroxides from tetramic acid derivatives by manganese(III)-mediated oxidative [2+2+2]cycloaddition
作者:Firoz Alam Chowdhury、Hiroshi Nishino、Kazu Kurosawa
DOI:10.1016/s0040-4039(98)01765-1
日期:1998.10
A simple azabicyclic peroxide synthesis was achieved by the manganese(III)-mediated oxidative formal [2+2+2] cycloaddition. A mixture of tetramic acid derivatives and alkenes was oxidized with manganese(III) acetate under a dry air stream to give 1-hydroxy-8-aza-2,3-dioxabicyclo[4.3.0]nonan-7-ones in good to quantitative chemical yields.
A Traceless Solid-Phase Approach to Functionalized Tetramic Acids and 2-Amino-4-pyrrolinones
作者:Olga Igglessi-Markopoulou、Kyriakos C. Prousis、Anastasia Detsi
DOI:10.1055/s-2005-918941
日期:——
A novel traceless route for the synthesis of optically active functionalized tetramic acids and 2-amino-4-pyrrolinones on solid support is described. p-Nitrophenyl carbonate linker on Wang resin is used to anchor l-α-Amino acids by their N-terminus thus leaving the carboxylic function free for further elaboration. High yields and ee, in combination with the versatility implied by the wide range of commercially available building blocks, are the major advantages of the proposed methodology.
描述了一种在固体载体上合成光学活性功能化特特拉姆酸和 2-氨基-4-吡咯啉酮的新无痕路线。 Wang 树脂上的对硝基苯碳酸酯连接体用于通过其 N 末端锚定 L-α-氨基酸,从而使羧基功能自由以供进一步阐述。高产率和高效率,再加上各种商用构建模块所暗示的多功能性,是所提出方法的主要优点。
JONES, RAYMOND C. F.;BEGLEV, MICHAEL J.;PETERSON, GRAEME E.;SUMARIA, SURE+, J. CHEM. SOC. PERKIN TRANS. PT 1,(1990) N, C. 1959-1968
作者:JONES, RAYMOND C. F.、BEGLEV, MICHAEL J.、PETERSON, GRAEME E.、SUMARIA, SURE+
DOI:——
日期:——
Palladium-catalyzed hydrogenolysis of azabicyclic peroxides. Quantitative transformation to 1-hydroxy-7-aza-2-oxabicyclo[3.3.0]octanes
作者:Firoz Alam Chowdhury、Shougo Kajikawa、Hiroshi Nishino、Kazu Kurosawa
DOI:10.1016/s0040-4039(99)00604-8
日期:1999.5
The palladium-catalyzed reduction of 1-hydroxy-8-aza-2,3-dioxabicyclo[4.3.0]nonanes, which were readily obtained by the manganese(III)-mediated oxidative formal [2+2+2] cycloaddition of pyrrolidinedione derivatives with alkenes and molecular oxygen, led to formal extrusion of one of the peroxide oxygens and produced 1-hydroxy-7-aza-2-oxabicyclo[3.3.0]octanes in quantitative chemical yields.