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Volumn 20, Issue 24, 2001, Pages 5084-5104

The catalytic effect in opening an organoactinide metal coordination sphere: Regioselective dimerization of terminal alkynes and hydrosilylation of alkynes and alkenes with PhSiH3 promoted by Me2SiCp″2ThnBu2

Author keywords

[No Author keywords available]

Indexed keywords

HYDROSILYLATIONO; ORGANOACTINIDE METAL COORDINATION SPHERE; REGIOSELECTIVE DIMERIZATION; TERMINAL ALKYNES; X RAY STRUCTURE;

EID: 0035956450     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om010488s     Document Type: Article
Times cited : (94)

References (107)
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    • note
    • -1 for the methathesis of an alkyne into a thorium-acetylide bond, in addition to 3 kcal·mol, since no product was found. The value of 3 kcal·mol is assigned from chemoselectivity value of >99% yield from ΔG‡ = -RT ln(k).
  • 91
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    • note
    • In the proposed catalytic cycle, an intermediate (reactive isomer of B) could also appear between A and C, which is at a rapid steady state, befor the insertion of the second alkyne.
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    • note
    • No Ellington oxidizing coupling products (RC=C-=CR) were observed.
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    • If the protonolysis of the alkyne is the rate-limiting step, a large number of oligomers are expected.
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    • note
    • For a full derivation of the kinetic rate expression based on the mechanism as presented in Scheme 2, see ref 28b.
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    • note
    • 2 this complex exists as a dimer, see ref 3c.
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    • Transition metal complexes derived from Pt, Ir, Pd, Rh, Ru, Ni, Co, Fe, Re, and Mn metals have been used for hydrosilylation, see: (a) Hiyama, T.; Kusumoto, T. In Comprehensive Organic Synyhesis; Trost, B. M., Fleming, I., Eds.; Pergamon Press: Oxford, 1991; Vol. 8, p 763.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.