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Volumn , Issue 3, 2007, Pages 427-430

Palladium-catalyzed allylation of 2-hydroxy-1,4-naphthoquinone: Application to the preparation of lapachol

Author keywords

Allylation; Lapachol; Lawsone; Palladium catalyzed

Indexed keywords

1,4 NAPHTHOQUINONE DERIVATIVE; 2 (1,1 DIMETHYL 2 PROPENYL) 3 HYDROXY 1,4 NAPHTHOQUINONE; ALCOHOL DERIVATIVE; ESTER DERIVATIVE; LAPACHOL; LAWSONE; PALLADIUM; UNCLASSIFIED DRUG;

EID: 33847400102     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-967947     Document Type: Article
Times cited : (15)

References (23)
  • 1
    • 33847357722 scopus 로고    scopus 로고
    • Thomson, R. H. Naturally Occurring Quinones IV; Blackie Academic and Professional: London, 1997, and preceding editions.
    • Thomson, R. H. Naturally Occurring Quinones IV; Blackie Academic and Professional: London, 1997, and preceding editions.
  • 18
    • 33847387078 scopus 로고    scopus 로고
    • General Procedure for the Allylation Reaction of Lawsone under Neat Conditions. A mixture of lawsone (157 mg, 0.9 mmol, Pd(Ph 3P)4 (50 mg, 0.045 mmol, AcOH (6 mg, 0.09 mmol, ca. 2 drops) and the proper allylating agent (alcohol or ester, 1.5 mmol) was thoroughly mixed and was put in an oven preheated at 100°C. After 35 min the gummy material was subjected to column chromatography (silica gel, hexane-EtOAc, 5:1) to afford the allyl derivatives 8a-e. Representative Data for Allylation Products. 2-Hydroxy-3-(3-phenylallyl)-1,4-naphthoquinone (8b, mp 168-170°C (lit.18 170°C, IR (KBr, v, 3289, 1671, 1641 cm-1. 1H NMR (300 MHz, CDCl3, δ, 8.14 (1 H, d, J, 7.3 Hz, 8.09 (1 H, d, J, 7.3 Hz, 7.77 (1 H, t, J, 7.3 Hz, 7.69 (1 H, t, J, 7.3 Hz, 7.41 (1 H, s, OH, 7.35-7.17 (5 H, m, 6.57 (1 H, d, J, 15.9 Hz, 6.30 1 H, dt, J1
    • 3: C, 78.61; H, 4.86. Found: C, 78.42; H, 4.89.
  • 19
    • 33847394487 scopus 로고    scopus 로고
    • 16
    • 16


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.