2024-03-29T05:21:21Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00010268
2022-12-14T04:11:26Z
1016:1017
SYNTHESIS OF PROCYANIDINS C2 AND C1 USING LEWIS ACID MEDIATED EQUIMOLAR CONDENSATION
Oizumi, Yukiko
Katoh, Miyuki
Hattori, Yasunao
Toda, Kazuya
Kawaguchi, Koichiro
Fujii, Hiroshi
Makabe, Hidefumi
Copyright© 2012 The Japan Institute of Heterocyclic Chemistry
Synthesis of procyanidins C2 and C1 was achieved via a stereoselective intermolecular condensation of equimolar amount of dimeric catechin or epicatechin nucleophile and monomeric catechin or epicatechin electrophile using Lewis acid. In the case of synthesis of procyanidin C2, AgBF4 and AgOTf afforded condensed product in excellent yield. As to the synthesis of procyanidin C1, Yb(OTf)(3) was effective for equimolar condensation.
Article
HETEROCYCLES. 85(9):2241-2250 (2012)
The Japan Institute of Heterocyclic Chemistry
2012-09
eng
journal article
AM
http://hdl.handle.net/10091/17116
https://soar-ir.repo.nii.ac.jp/records/10268
http://www.heterocycles.jp/
http://www.heterocycles.jp/
https://doi.org/10.3987/COM-12-12526
10.3987/COM-12-12526
0385-5414
AA00663739
HETEROCYCLES
85
9
2241
2250
https://soar-ir.repo.nii.ac.jp/record/10268/files/SYNTHESIS_PROCYANIDIN_C2_C1_USING_LEWIS_ACID.pdf
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2015-09-25