Academic Journal

Anion-Stoichiometry-Dependent Selectivity Enhancement in Ion-Paired Chiral Ligand–Palladium Complex Catalyzed Enantioselective Allylic Alkylation.

التفاصيل البيبلوغرافية
العنوان: Anion-Stoichiometry-Dependent Selectivity Enhancement in Ion-Paired Chiral Ligand–Palladium Complex Catalyzed Enantioselective Allylic Alkylation.
المؤلفون: Ohmatsu, Kohsuke, Hara, Yoshiyuki, Kusano, Yuya, Ooi, Takashi
المصدر: Synlett; 2016, Vol. 27 Issue 7, p1047-1050, 4p
مصطلحات موضوعية: STOICHIOMETRY, ENANTIOSELECTIVE catalysis, ALLYLIC alkylation, ION pairs, SUPRAMOLECULAR chemistry, CHEMICAL reactions
مستخلص: The ratio of chiral Brønsted acid to ammonium-phosphine hybrid ligand in the in situ preparation of ion-paired chiral ligands was found to have a notable effect on the stereocontrolling ability of the corresponding palladium complex. The use of supramolecular palladium complexes generated from palladium metal, ammonium phosphine, and a chiral phosphoric acid in a ratio of 1:2:3 enabled an excellent level of enantiocontrol in the catalytic asymmetric allylation of α-nitrocarboxylates with a functionalized allylic carbonate. [ABSTRACT FROM AUTHOR]
Copyright of Synlett is the property of Georg Thieme Verlag Stuttgart and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
قاعدة البيانات: Complementary Index
الوصف
تدمد:09365214
DOI:10.1055/s-0035-1561403