Efficient synthesis of 2- and 3-substituted indenes from 2-bromobenzyl bromide through an enolate alkylation/Cr(II)/Ni(II)-mediated carbonyl addition sequence

Tetrahedron Letters

Volumn 40, Issue 42, 1999, Pages 7445-7448

  Halterman, Ronald L ^a   Zhu, Chengian ^a  

^a UNIVERSITY OF OKLAHOMA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BENZENE DERIVATIVE; CARBONYL DERIVATIVE; CHROMIUM; KETONE; NICKEL; ORGANOBROMINE DERIVATIVE;

ALKYLATION; ARTICLE; CATALYSIS; CHEMICAL MODIFICATION; SYNTHESIS;

EID: 0033570241     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(99)01541-5     Document Type: Article

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19. 2, PE) to give the 3-ethyl-2-methyl-1H-indene (3a) as a colorless liquid (160 mg, 90%).
20. 3) δ: 7.0-7.5 (m, 8H), 3.10 (s, 2H), 2.65 (m, 2H), 2.24 (m, 2H).
21. 3) δ: 7.0-7.5 (m, 8H), 3.10 (s, 2H), 2.65 (m, 2H), 2.24 (m, 2H).
22. 3) δ: 7.0-7.5 (m, 8H), 3.10 (s, 2H), 2.65 (m, 2H), 2.24 (m, 2H).
23. 3) δ: 7.0-7.5 (m, 8H), 3.10 (s, 2H), 2.65 (m, 2H), 2.24 (m, 2H).
24. 3) δ: 7.0-7.5 (m, 8H), 3.10 (s, 2H), 2.65 (m, 2H), 2.24 (m, 2H).
25. 3) δ: 7.0-7.5 (m, 8H), 3.10 (s, 2H), 2.65 (m, 2H), 2.24 (m, 2H).
26. 3) δ: 7.0-7.5 (m, 8H), 3.10 (s, 2H), 2.65 (m, 2H), 2.24 (m, 2H).