نتایج جستجو برای: aldol reaction

تعداد نتایج: 413188  

Journal: :Journal of Synthetic Organic Chemistry, Japan 2003

Journal: :Chemical communications 2006
Chuanling Cheng Jian Sun Chao Wang Yu Zhang Siyu Wei Fan Jiang Yundong Wu

Protonated N'-benzyl-N'-l-prolyl-l-proline hydrazide has been developed as a highly enantioselective catalyst for the asymmetric direct aldol reaction of aromatic aldehydes with ketones.

Journal: :Chemical communications 2012
Shu-Wen Duan Yang Li Yi-Yin Liu You-Quan Zou De-Qing Shi Wen-Jing Xiao

An efficient organocatalytic Michael-aldol cascade reaction for the asymmetric synthesis of spirocyclic oxindole derivatives fused with tetrahydrothiophenes has been developed through a formal [3+2] annulation strategy.

Journal: :Chemical communications 2007
Jun Jiang Long He Shi-Wei Luo Lin-Feng Cun Liu-Zhu Gong

Asymmetric desymmetrization of 4-substituted cyclohexanones using proline amide-catalyzed direct aldol reaction afforded beta-hydroxyketones with three stereogenic centers in high enantioselectivities of up to >99% ee.

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