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Volumn 15, Issue 11, 1996, Pages 2633-2639

Synthesis, characterization, and reactions of the new seven-membered nickelacycle (2,2′-bipyridine)-6,7-dihydro-5H-dibenzo[c,e]nickelepine

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Indexed keywords


EID: 0007885925     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om9509812     Document Type: Article
Times cited : (7)

References (66)
  • 8
    • 0000969195 scopus 로고
    • For analogous reactions of dialkylnickel complexes and dibromomethane see: (a) Takahashi, S.; Suzuki, Y.; Sonogashira, K.; Hagihara, N. J. Chem. Soc., Chem. Commun. 1976, 839. (b) Binger, P.; Doyle, M. J. J. Organomet. Chem. 1978, 162, 195.
    • (1978) J. Organomet. Chem. , vol.162 , pp. 195
    • Binger, P.1    Doyle, M.J.2
  • 25
    • 3743134862 scopus 로고    scopus 로고
    • note
    • This solid, insoluble in organic solvents, turned light green (almost white) when exposed to air.
  • 40
    • 3743056734 scopus 로고    scopus 로고
    • note
    • The alkynes were recovered nearly quantitatively.
  • 43
    • 3743104578 scopus 로고    scopus 로고
    • note
    • 2 survives the workup, whereas 12 does not.
  • 44
    • 3743072362 scopus 로고    scopus 로고
    • note
    • As 1 is completely insoluble in the reaction mixture, toluene cannot result from protonation of 1.
  • 45
    • 3743105753 scopus 로고    scopus 로고
    • note
    • The other product of the reductive elimination is "black nickel".
  • 47
    • 85085783103 scopus 로고    scopus 로고
    • note
    • 6.
  • 48
    • 3743149198 scopus 로고    scopus 로고
    • note
    • In the next step, 23 reacts with a second molecule of 1 to yield 7, which is mainly formed from 21. Thus, there is no indication if 23 is formed in meaningful amounts.
  • 49
    • 3743121396 scopus 로고    scopus 로고
    • note
    • It was mentioned earlier that 18 is not found and, thus, 8 must have a very short lifetime under the reaction conditions. An alternative pathway here would be the reductive elimination of (BIPY)Ni from 22 before the reaction with the second molecule of 1. This is less probable, as the Ar-Ni-benzyl bond is stable enough to allow the existence of 12, from which 11, 14, and 16 are isolated.
  • 50
    • 3743091263 scopus 로고    scopus 로고
    • note
    • There is no evidence for the double reductive elimination of 7 (to yield 5); however, it cannot be ruled out on the basis of the results.
  • 66
    • 3743154867 scopus 로고    scopus 로고
    • note
    • Traces of the ten-membered-ring system were also found.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.