Asymmetric Cycloaddition of ortho-Hydroxyphenyl-Substituted para-Quinone Methides and Enamides Catalyzed by Chiral Phosphoric Acid
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https://figshare.com/articles/dataset/Asymmetric_Cycloaddition_of_i_ortho_i_-Hydroxyphenyl-Substituted_i_para_i_-Quinone_Methides_and_Enamides_Catalyzed_by_Chiral_Phosphoric_Acid/8242817
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资源简介：
A BINOL-based chiral phosphoric acid was employed as an efficient catalyst in enantioselective cycloaddition of ortho-hydroxyphenyl-substituted para-quinone methides and enamides, which gave rise to acetamido-substituted tetrahydroxanthenes with three adjacent stereogenic centers in high yields (up to 99%) and excellent stereoselectivities (up to >99:1 diastereomeric ratio and up to 98% ee).
创建时间：
2019-05-28
