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Formal [4 + 1]- and [5 + 1]-Annulation by an SN2–Conjugate Addition Sequence: Stereoselective Synthesis of Highly Substituted Carbocycles

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Figshare2016-02-20 更新2026-04-29 收录
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https://figshare.com/articles/dataset/Formal_4_1_and_5_1_Annulation_by_an_S_sub_N_sub_2_Conjugate_Addition_Sequence_Stereoselective_Synthesis_of_Highly_Substituted_Carbocycles/2518090
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K2CO3-mediated reactions of 6-bromo-2-hexenoates and 7-bromo-2-heptenoate with active methylene compounds deliver highly substituted cyclopentane and cyclohexane derivatives, respectively via a sequence of SN2–conjugate addition reactions (formal [4 + 1]- and [5 + 1]-annulation) in a diastereoselective manner.
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2016-02-20
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