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Volumn 27, Issue 9, 2008, Pages 2078-2091

Directed formation of allene complexes upon reaction of non-heteroatom-substituted manganese alkynyl carbene complexes with nucleophiles

Author keywords

[No Author keywords available]

Indexed keywords

COMPLEXATION; NUCLEOPHILES; ORGANOMETALLICS; PROTONATION; REACTION KINETICS; STRUCTURE (COMPOSITION);

EID: 44449112791     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om800060v     Document Type: Article
Times cited : (17)

References (87)
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    • For reviews being more specific to applications of heteroatom-substituted alkynyl carbene complexes to organic synthesis see: (a) De Meijere, A.; Schriemer, H.; Duetsch, M. Angew. Chem., Int. Ed. 2000, 39, 3964.
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    • For the synthesis of non-heteroatom-substituted alkynyl carbene complexes, see for instance: a
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    • In a parallel work, Casey et al. have shown that the thermally stable, yet air sensitive, anionic acyl complexes [CpMn(CO)2C(O)R] Li·Et2O may constitute a viable alternative to cationic carbyne complexes as starting materials for the preparation of non-heteroatom-substituted manganese alkynyl carbene complexes; see ref 6b
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    • For applications of group 7 carbene complexes to organic synthesis see for instance: a
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    • We have observed that addition of 1 molar equiv of 12-crown-4 ether, a specific trap for the lithium cation, causes a very significant decrease of the lower frequency band with concomitant enhancement of the band at 1798 cm-1. On the outer hand, when potassium diphenylphosphide is used in place of lithium diphenylphosphide, the anionic species exhibits two bands in the νCO region at 1873(s) and 1798(ms) cm-1, very close in position to those of the carbene anion [Cp′CO) 2Mn=C(OEt)CH2][K, 19b(b) Rabier, A, Lugan, N, Mathieu, R, Geoffroy, G. L. Organometallics 1994, 13, 4676
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    • c (K) is the coalescence temperature of two signals separated by δν (Hz).
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    • 10 may not be observable due to an extremely low concentration under these reaction conditions.
    • 10 may not be observable due to an extremely low concentration under these reaction conditions.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.