Rhodium-Catalyzed Asymmetric Dehydrocoupling: Enantioselective Synthesis of a P-Stereogenic Diphospholane with Mistake-Correcting Diastereoselectivity
Rhodium-Catalyzed Asymmetric Dehydrocoupling: Enantioselective Synthesis of a P-Stereogenic Diphospholane with Mistake-Correcting Diastereoselectivity
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铑催化的不对称脱氢偶联:具有纠错非对映选择性的对映体二磷烷的对映选择性合成
DOI:
10.1021/acs.organomet.3c00188
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发表时间:
2023
期刊:
影响因子:
2.8
通讯作者:
Rheingold, Arnold L.
中科院分区:
文献类型:
--
作者:
Chachula, Sarah T.;Scheetz, Perry M.;Zureick, Andrew H.;Hughes, Russell P.;Glueck, David S.;Hernandez, Ritchie E.;Figueroa, Joshua S.;Rheingold, Arnold L.
Catalytic asymmetric dehydrocoupling of secondary phosphines is a potentially valuable route to enantiomerically enriched P-stereogenic diphosphines for use as ligands or building blocks for chiral bis(phosphines). Rh(diphos*) catalyst precursors converted arac/mesomixture of PhHP(CH2)3PHPh (1) to theC2-symmetric P-stereogenicanti-diphospholane PhP(CH2)3PPh (2) in up to a 58:42 enantiomeric ratio (er) with complete diastereoselectivity via catalyst-mediated isomerization of the intermediatesyn-diphospholane3to2(mistake correction by conversion of the diastereomermeso-3to chiralC2-2). NMR studies of catalytic reactions identified the resting state Rh((R,R)-i-Pr-DuPhos)(PhHP(CH2)3PPh) (4) and suggested a proposed mechanism for stereocontrolled P–P bond formation via oxidative addition and reductive elimination steps.
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影响因子:
15
作者:
S. Molitor;J. Becker;V. H. Gessner
通讯作者:
V. H. Gessner
DOI:
--
发表时间:
1966
期刊:
影响因子:
--
作者:
J. B. Lambert;D. C. Mueller
通讯作者:
D. C. Mueller
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
R. Appel;B. Brück;F. Knoch;J. Hünerbein
通讯作者:
J. Hünerbein
影响因子:
4.6
作者:
K. B. Borisenko;D. Rankin
通讯作者:
D. Rankin
影响因子:
16.6
作者:
Wu, Lipeng;Annibale, Vincent T.;Manners, Ian
通讯作者:
Manners, Ian