Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 130, Issue 50, Pages 16858-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja806875c
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Funding
- JSPS, KAKENHI [20245022]
- MEXT [19750072]
- G-COE Program of MEXT
- Toray Science Foundation
- Iketani Science and Technology Foundation
- Izumi Science and Technology Foundation
- JSPS
- Grants-in-Aid for Scientific Research [20245022, 19750072] Funding Source: KAKEN
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We have established, for the first time, a practical synthesis of chiral 1,1'-binaphthyl-2,2'-disulfonic acid (BINSA 1) from inexpensive BINOL. An efficient enantioselective catalysis in the Mannich-type reactions of diketones and ketoester equivalents with aldimines was developed using chiral 1-achiral, 2,6-diarylpyridine (2) combined salts, which acted as convenient chiral tailor-made Bronsted acid-base organocatalysts in situ.
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