Highly Diastereoselective Synthesis of 2,2-Disubstituted Cyclopentane-1,3-diols via Stepwise Ketone Reduction Enabling Concise Chirality Construction

Autor: Bu Dandan, Jianjiong Li, Liangyan Zhu, Qin Wang, Jingyao Gong, Dunming Zhu, Jinhui Feng, Qiaqing Wu, Xi Chen, Hongliu Zhang
Rok vydání: 2020
Předmět:
Zdroj: The Journal of Organic Chemistry. 85:9599-9606
ISSN: 1520-6904
0022-3263
DOI: 10.1021/acs.joc.0c00851
Popis: A series of 2,2-disubstituted trans,cis-cyclopentane-1,3-diols were synthesized in >99% dr through enzymatic reduction of enantiopure 2,2-disubstituted 3-hydroxycyclopentane-1-ones, which were prepared by highly stereoselective enzymatic reduction of the corresponding cyclodiketones. For 2-benzyl-2-methyl-3-oxocyclopentyl acetate, acetylation of the hydroxyl group significantly affected the reduction stereoselectivity, giving trans,cis-, trans,trans-, and cis,cis-2-benzyl-2-methyl-cyclopentane-1,3-diols in stereomerically pure form. This efficient and environmentally friendly method provides a practical approach to the synthesis of these chiral building blocks in single stereoisomeric form, demonstrating the power of biocatalysis in the concise chirality construction of complex chiral molecules.
Databáze: OpenAIRE