[5C + 1S] Annulation: A Facile and Efficient Synthetic Route toward Functionalized 2,3-Dihydrothiopyran-4-ones
摘要:
A facile and efficient synthetic route toward highly substituted 2,3-dihydrothiopyran-4-ones 2 has been developed via a formal [5C + 1S] annulation of readily available alpha-alkenoyl ketene-(S,S)-acetals 1 with sodium sulfide nonahydrated salt (Na(2)S(.)9H(2)O) and utilized in the synthesis of 2-(4-chlorophenyl)-6-(morpholin-4-yl)-4H-thiopyran-4-one 51, an inhibitor of DNA-dependent protein kinase (DNA-PK).
[5 + 1] Annulation: A Synthetic Strategy for Highly Substituted Phenols and Cyclohexenones
摘要:
A novel [5 + 1] annulation strategy is developed for the synthesis of highly substituted phenols and cyclohexenones from alpha-alkenoyl ketenedithioacetals and nitroalkanes.
[5 + 1] Annulation: A Synthetic Strategy for Highly Substituted Phenols and Cyclohexenones
作者:Xihe Bi、Dewen Dong、Qun Liu、Wei Pan、Lei Zhao、Bing Li
DOI:10.1021/ja043023c
日期:2005.4.1
A novel [5 + 1] annulation strategy is developed for the synthesis of highly substituted phenols and cyclohexenones from alpha-alkenoyl ketenedithioacetals and nitroalkanes.
[5C + 1S] Annulation: A Facile and Efficient Synthetic Route toward Functionalized 2,3-Dihydrothiopyran-4-ones
作者:Xihe Bi、Dewen Dong、Yan Li、Qun Liu、Qian Zhang
DOI:10.1021/jo052032g
日期:2005.12.1
A facile and efficient synthetic route toward highly substituted 2,3-dihydrothiopyran-4-ones 2 has been developed via a formal [5C + 1S] annulation of readily available alpha-alkenoyl ketene-(S,S)-acetals 1 with sodium sulfide nonahydrated salt (Na(2)S(.)9H(2)O) and utilized in the synthesis of 2-(4-chlorophenyl)-6-(morpholin-4-yl)-4H-thiopyran-4-one 51, an inhibitor of DNA-dependent protein kinase (DNA-PK).