Synthesis of Unique Scaffolds via Diels−Alder Cycloadditions of Tetrasubstituted Cyclohexadienes
摘要:
Diels-Alder cycloadditions of highly substituted cyclohexadienes derived from rhodium-mediated [2 + 2 + 2] cyclizations are reported. Reactive heterodienophiles, including singlet oxygen (O-1(2)), 4-substituted-1,2,4-triazoline-3,5-diones (TADs), and aryl- and acylnitroso compounds were employed, yielding novel heterocyclic products.
Intramolecular Rhodium-Catalyzed [2+2+2] Cyclizations of Diynes with Enones
摘要:
The Rh(I)-catalyzed inter- and intramolecular [2+2+2] cyclization of diynes with alpha,beta-unsaturated enones proceeds with microwave promotion in good yields. This chemistry was applied to the synthesis of (-)-alcyopterosin I.
Synthesis of Unique Scaffolds via Diels−Alder Cycloadditions of Tetrasubstituted Cyclohexadienes
作者:Amanda L. Jones、John K. Snyder
DOI:10.1021/ol100318f
日期:2010.4.2
Diels-Alder cycloadditions of highly substituted cyclohexadienes derived from rhodium-mediated [2 + 2 + 2] cyclizations are reported. Reactive heterodienophiles, including singlet oxygen (O-1(2)), 4-substituted-1,2,4-triazoline-3,5-diones (TADs), and aryl- and acylnitroso compounds were employed, yielding novel heterocyclic products.
Intramolecular Rhodium-Catalyzed [2+2+2] Cyclizations of Diynes with Enones
作者:Amanda L. Jones、John K. Snyder
DOI:10.1021/jo9001678
日期:2009.4.3
The Rh(I)-catalyzed inter- and intramolecular [2+2+2] cyclization of diynes with alpha,beta-unsaturated enones proceeds with microwave promotion in good yields. This chemistry was applied to the synthesis of (-)-alcyopterosin I.