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A straightforward entry to chiral carbocyclic nucleoside analogues via the enantioselective [3+2] cycloaddition of α-nucleobase substituted acrylates. 2015

Ming-Sheng Xie, and Yong Wang, and Jian-Ping Li, and Cong Du, and Yan-Yan Zhang, and Er-Jun Hao, and Yi-Ming Zhang, and Gui-Rong Qu, and Hai-Ming Guo
Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China. Jplig@163.com guohm518@hotmail.com.

A straightforward entry to chiral carbocyclic nucleoside analogues has been realized via the enantioselective [3+2] cycloaddition of α-nucleobase substituted acrylates to vinyl cyclopropanes for the first time. With Pd2(dba)3-L5 as the catalyst, carbocyclic purine, uracil, and thymine nucleoside analogues with quaternary stereocenters were obtained in excellent yields (up to 99% yield) and good enantioselectivities (up to 92% ee).

UI MeSH Term Description Entries
D009705 Nucleosides Purine or pyrimidine bases attached to a ribose or deoxyribose. (From King & Stansfield, A Dictionary of Genetics, 4th ed) Nucleoside,Nucleoside Analog,Nucleoside Analogs,Analog, Nucleoside,Analogs, Nucleoside
D010165 Palladium A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.
D011687 Purines A series of heterocyclic compounds that are variously substituted in nature and are known also as purine bases. They include ADENINE and GUANINE, constituents of nucleic acids, as well as many alkaloids such as CAFFEINE and THEOPHYLLINE. Uric acid is the metabolic end product of purine metabolism.
D011743 Pyrimidines A family of 6-membered heterocyclic compounds occurring in nature in a wide variety of forms. They include several nucleic acid constituents (CYTOSINE; THYMINE; and URACIL) and form the basic structure of the barbiturates.
D003521 Cyclopropanes Three-carbon cycloparaffin cyclopropane (the structural formula (CH2)3) and its derivatives.
D000179 Acrylates Derivatives of acrylic acid (the structural formula CH2
D013237 Stereoisomerism The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Molecular Stereochemistry,Stereoisomers,Stereochemistry, Molecular,Stereoisomer
D061565 Cycloaddition Reaction Synthetic organic reactions that use reactions between unsaturated molecules to form cyclical products. Cycloaddition,Cycloaddition Reaction Techniques,Diels-Alder Reaction,Cycloaddition Reaction Technique,Cycloaddition Reactions,Diels Alder Reaction,Reaction Technique, Cycloaddition,Reaction Techniques, Cycloaddition,Reaction, Cycloaddition,Reaction, Diels-Alder,Reactions, Cycloaddition,Technique, Cycloaddition Reaction,Techniques, Cycloaddition Reaction

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