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Volumn 48, Issue 37, 2009, Pages 6840-6843

Unusual allylpalladium carboxylate complexes: Identification of the resting state of catalytic enantioselective decarboxylative allylic alkylation reactions of ketones

Author keywords

Allylic alkylation; Asymmetric catalysis; Carboxylate ligands; Palladium; Reaction mechanisms

Indexed keywords

ALLYLIC ALKYLATION; ALLYLIC ALKYLATION REACTIONS; ASYMMETRIC CATALYSIS; CARBOXYLATE COMPLEXES; CARBOXYLATE LIGANDS; ENANTIOSELECTIVE; KETONE ENOLATES; REACTION MECHANISMS; RESTING STATE;

EID: 69549106158     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200902575     Document Type: Article
Times cited : (79)

References (40)
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    • 2O (0.55 equiv) to a typical reaction results in only a marginal decrease in the yield and ee value of the product (< 2% in each case); see the Supporting Information for details
    • For example, the addition of H2O (0.55 equiv) to a typical reaction results in only a marginal decrease in the yield and ee value of the product (< 2% in each case); see the Supporting Information for details.
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    • To corroborate our comparison of all three variants of the allylic alkylation reaction, we carried out analogous 31P NMR spectroscopic experiments for the equivalent conversion of allyl enol carbonate and silyl enol ether substrates into ketone 4 and obtained similar results.[6]
    • To corroborate our comparison of all three variants of the allylic alkylation reaction, we carried out analogous 31P NMR spectroscopic experiments for the equivalent conversion of allyl enol carbonate and silyl enol ether substrates into ketone 4 and obtained similar results.[6]
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    • At 24°C, the half-life, t1/2, of carboxylate 1 in [D8]THF is 7.3 min
    • At 24°C, the half-life, t1/2, of carboxylate 1 in [D8]THF is 7.3 min.
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    • See the Supporting Information for details
    • See the Supporting Information for details.
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    • Reported examples of transition-metal complexes with a μ- bound allyl group cis to a carboxylate ligand are limited to a single ruthenium complex and a single rhodium complex, both of which were characterized by other methods; see
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    • 3rf-allylic Pd, Pt, and Ni complexes with noncoordinating trifluoroacetate and bicarbonate counterions, see
    • a) For structures of ν3rf-allylic Pd, Pt, and Ni complexes with noncoordinating trifluoroacetate and bicarbonate counterions, see: L. Böttcher, A. Scholz, D. Walther, N. Weisbach, H. Görls, Z. Anorg. Allg. Chem. 2003, 629, 2103 - 2112;
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    • The enantioselectivity of the reaction to produce ketone 4 is not affected by the presence of dba (3.0 equiv) in solution
    • The enantioselectivity of the reaction to produce ketone 4 is not affected by the presence of dba (3.0 equiv) in solution.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.