The organocatalyzed regioselective allylic trifluoromethylation of Morita–Baylis–Hillman adducts using Ruppert–Prakash reagent was achieved in high to excellent yields via a successive SN2′/SN2′ mode for the first time. The reaction was extended to the asymmetric allylic trifluoromethylation by the use of a bis-cinchona alkaloid catalyst with high enantioselectivities up to 94% ee.
首次通过连续的S N 2'/ S N 2'模式,使用Ruppert-Prakash试剂对Morita-Baylis-Hillman加合物进行了有机催化的区域选择性烯丙基三氟甲基化反应,收率很高。通过使用具有高达94%ee的高对映选择性的双金鸡纳生物碱催化剂,反应扩展到不对称的烯丙基三氟甲基化反应。
A Facile Synthesis of Substituted Indenones and Piperidine-2,6-diones from the Baylis-Hillman Acetates
作者:Deevi Basavaiah、Dandamudi V. Lenin
DOI:10.1002/ejoc.201000739
日期:2010.10
Baylis-Hillmanacetates were conveniently transformed into substitutedindenone and piperidine-2,6-dione frameworks by treatment with (di)phenylacetonitrile followed by Friedel-Crafts cyclization or imide formation.
Simple and facile synthesis of tetralone-spiro-glutarimides and spiro-bisglutarimides from Baylis–Hillman acetates
作者:Deevi Basavaiah、Raju Jannapu Reddy
DOI:10.1039/b717843c
日期:——
A simple and convenient synthesis of di(E)-arylidene-tetralone-spiro-glutarimides fromBaylis-Hillmanacetates via an interesting biscyclization strategy involving facile C-C and C-N bond formation is described. Also, one-pot multistep transformation of the Baylis-Hillmanacetates into di(E)-arylidene-spiro-bisglutarimides is presented.
A facile synthesis of (E)-5-arylylidene-3-((substituted-ind-2-en-1-one)methyl)-3-aryl piperidine-2,6-diones via domino bis-cyclization using the Baylis-Hillman adducts
作者:Lenin V. Dandamudi、Payal Malvi
DOI:10.1016/j.tet.2023.133603
日期:2023.9
A simple and efficient synthesis of (E)-5-arylylidene-3-((substituted-ind-2-en-1-one)methyl)-3-aryl piperidine-2,6-diones from Baylis-Hillman acetates via bis-alkylation of aryl acetonitriles followed by facile domino bis-cyclization involving C–C bond and C–N bond formation reactions are described.
由Baylis-Hillman乙酸酯通过双双化合物简单高效地合成( E )-5-亚芳基-3-((取代-ind-2-en-1-one)甲基)-3-芳基哌啶-2,6-二酮描述了芳基乙腈的烷基化,然后进行涉及 C-C 键和 C-N 键形成反应的简单多米诺双环化。