Catalytic Asymmetric Dearomatization of Indolyl Dihydropyridines through an Enamine Isomerization/Spirocyclization/Transfer Hydrogenation Sequence.Angew Chem Int Ed Engl. 2018 03 01; 57(10):2653-2656.AC
Abstract
A highly efficient synthesis of enantioenriched spiroindolines by catalytic asymmetric dearomatization of indolyl dihydropyridines through a chiral phosphoric acid catalyzed enamine isomerization/spirocyclization/transfer hydrogenation sequence has been developed. This reaction proceeds under mild reaction conditions, affording novel spiroindolines in good yields (up to 88 %) with excellent enantioselectivity (up to 97 % ee). DFT calculations provide insights into the reaction mechanism as well as the origin of stereochemistry.
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Pub Type(s)
Journal Article
Research Support, Non-U.S. Gov't
Language
eng
PubMed ID
29327453
Citation
Xia, Zi-Lei, et al. "Catalytic Asymmetric Dearomatization of Indolyl Dihydropyridines Through an Enamine Isomerization/Spirocyclization/Transfer Hydrogenation Sequence." Angewandte Chemie (International Ed. in English), vol. 57, no. 10, 2018, pp. 2653-2656.
Xia ZL, Zheng C, Wang SG, et al. Catalytic Asymmetric Dearomatization of Indolyl Dihydropyridines through an Enamine Isomerization/Spirocyclization/Transfer Hydrogenation Sequence. Angew Chem Int Ed Engl. 2018;57(10):2653-2656.
Xia, Z. L., Zheng, C., Wang, S. G., & You, S. L. (2018). Catalytic Asymmetric Dearomatization of Indolyl Dihydropyridines through an Enamine Isomerization/Spirocyclization/Transfer Hydrogenation Sequence. Angewandte Chemie (International Ed. in English), 57(10), 2653-2656. https://doi.org/10.1002/anie.201712435
Xia ZL, et al. Catalytic Asymmetric Dearomatization of Indolyl Dihydropyridines Through an Enamine Isomerization/Spirocyclization/Transfer Hydrogenation Sequence. Angew Chem Int Ed Engl. 2018 03 1;57(10):2653-2656. PubMed PMID: 29327453.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR
T1 - Catalytic Asymmetric Dearomatization of Indolyl Dihydropyridines through an Enamine Isomerization/Spirocyclization/Transfer Hydrogenation Sequence.
AU - Xia,Zi-Lei,
AU - Zheng,Chao,
AU - Wang,Shou-Guo,
AU - You,Shu-Li,
Y1 - 2018/02/06/
PY - 2017/12/04/received
PY - 2018/1/13/pubmed
PY - 2018/1/13/medline
PY - 2018/1/13/entrez
KW - asymmetric catalysis
KW - chiral phosphoric acid
KW - dearomatization
KW - spiroindolines
KW - transfer hydrogenation
SP - 2653
EP - 2656
JF - Angewandte Chemie (International ed. in English)
JO - Angew Chem Int Ed Engl
VL - 57
IS - 10
N2 - A highly efficient synthesis of enantioenriched spiroindolines by catalytic asymmetric dearomatization of indolyl dihydropyridines through a chiral phosphoric acid catalyzed enamine isomerization/spirocyclization/transfer hydrogenation sequence has been developed. This reaction proceeds under mild reaction conditions, affording novel spiroindolines in good yields (up to 88 %) with excellent enantioselectivity (up to 97 % ee). DFT calculations provide insights into the reaction mechanism as well as the origin of stereochemistry.
SN - 1521-3773
UR - https://www.unboundmedicine.com/medline/citation/29327453/Catalytic_Asymmetric_Dearomatization_of_Indolyl_Dihydropyridines_through_an_Enamine_Isomerization/Spirocyclization/Transfer_Hydrogenation_Sequence_
DB - PRIME
DP - Unbound Medicine
ER -