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Volumn 57, Issue 4, 2009, Pages 436-438

Pentavalent organoantimony compounds as mild N-arylating agents for amines: Cu-mediated ullmann-type N-arylation with tetraarylantimony(V) acetates

Author keywords

Aerobic reaction; Copper(II) acetate; N arylation; Tetraarylantimony(V) acetate; Ullmann condensation

Indexed keywords

AMINE; ANTIMONY ACETATE; ANTIMONY DERIVATIVE; COPPER ACETATE; UNCLASSIFIED DRUG;

EID: 65349154472     PISSN: 00092363     EISSN: 13475223     Source Type: Journal    
DOI: 10.1248/cpb.57.436     Document Type: Article
Times cited : (10)

References (38)
  • 32
    • 65349126259 scopus 로고    scopus 로고
    • Akiba K.-y., Chemistry of Hypervalent Compounds, Wiley-VCH, New York, 1999.
    • Akiba K.-y., "Chemistry of Hypervalent Compounds," Wiley-VCH, New York, 1999.
  • 33
    • 65349140373 scopus 로고    scopus 로고
    • Typical procedure: To a solution of 2 (0.75 mmol, 6a (0.5mmol, and TEA (3.0mmol) in CH2Cl2 (5 ml) was added Cu(OAc)2 (0.55 mmol, and the mixture was stirred for 6h at 40°C (bath temperature, The mixture was diluted with CH2Cl2 (50 ml) and NH3 aq, 1.5mol/l, 50 ml) and then stirred for 30min. The organic layer was separated, washed with brine and dried over anhydrous MgSO4. After removal of the solvent in vacuo, the residue was separated by SiO2 column chromatography (hexane: CH 2Cl2=3 :1) to give 7a 77 mg, 84% yield
    • 2=3 :1) to give 7a (77 mg, 84% yield).
  • 34
    • 65349180536 scopus 로고    scopus 로고
    • The tetraarylantimony acetates (2, 10, 11) were prepared by dis-proportination reaction on heating 1 :1 mixture of Ar 5Sb and Ar3Sb(OAc)2 in toluene (100 °C) for 3-6h. 2: (C6H5)4SbOAc, mp 135-136°C (lit.37) 129-131 °C, 10: (4-CH3C 6H4)4SbOAc, mp 160-163 °C (lit. 38) 157-158.1 °C, 11: (4-ClC6H4) 4SbOAc, mp 184-187°C
    • 4SbOAc, mp 184-187°C.
  • 37


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.