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Volumn , Issue 6, 2007, Pages 969-973

Palladium-catalyzed cross-coupling reaction of a sulfoximine with aryl dichlorides under microwave irradiation

Author keywords

Coupling reaction; Microwave irradiation; Palladium; Sulfoximine

Indexed keywords

1,4 DICHLOROBENZENE; FUNCTIONAL GROUP; PALLADIUM; SULFOXIMINE; UNCLASSIFIED DRUG;

EID: 34247257267     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-973872     Document Type: Article
Times cited : (14)

References (38)
  • 1
    • 0013418182 scopus 로고    scopus 로고
    • Palladium-Catalyzed Amination of Aryl Halides and Related Reactions
    • For some examples and leading references, see: a, Negishi, E, Ed, Wiley: Hoboken
    • For some examples and leading references, see: (a) Hartwig, J. F. Palladium-Catalyzed Amination of Aryl Halides and Related Reactions, In Handbook of Organopalladium Chemistry for Organic Synthesis; Negishi, E., Ed.; Wiley: Hoboken, 2002, 1051-1096.
    • (2002) Handbook of Organopalladium Chemistry for Organic Synthesis , pp. 1051-1096
    • Hartwig, J.F.1
  • 3
    • 0004136578 scopus 로고    scopus 로고
    • Ricci, A, Ed, Wiley-VCH: Weinheim
    • (c) Hartwig, J. F. In Modern Amination Methods; Ricci, A., Ed.; Wiley-VCH: Weinheim, 2000, 195-262.
    • (2000) Modern Amination Methods , pp. 195-262
    • Hartwig, J.F.1
  • 36
    • 34247229853 scopus 로고    scopus 로고
    • General Procedure for Coupling of Sulfoximines with Aryl Dichlorides, Procedure A To 5 mL of toluene in a 10 mL microwave tube was successively added aryl dichlorides (1.0 equiv, R)-sulfoximine (4.0 equiv, rac-BINAP (7.5 mol, Pd(OAc)2 (5 mol, and Cs 2CO3 (14 equiv) under N2 atmosphere. The reaction mixture was stirred at r.t. for 30 min, then irradiated under vigorous stirring for 1.5 h at 135°C (constant temperature) and 200 W (irradiation power, The reaction was cooled down and diluted with CH2Cl 2, filtered through a pad of Celite® and concentrated in vacuo. The residue was purified by flash chromatography. Procedure B To 5 mL of toluene in a 10 mL microwave tube was successively added aryl chloride (1.5 mmol, R)-sulfoximine (0.3 mmol, rac-BINAP (7.5 mol, Pd(OAc)2 (5 mol, and Cs2CO3 (0.42 mmol) under N2 atmosphe
    • 2, filtered through a pad of Celite® and concentrated in vacuo. The residue was purified by flash chromatography (30-40% EtOAc-hexane).
  • 37
    • 34247268753 scopus 로고    scopus 로고
    • Data for Selected Compounds Compound 3 (procedure A, colorless liquid, yield 42, IR: 3064, 3019, 2925, 1589, 1474, 1286, 1200, 1090 cm-1. 1H NMR (300 MHz, CDCl3, δ, 8.06-8.03 (m, 2 H, 7.60-7.53 (m, 3 H, 7.31 (dd, J, 7.9, 1.5 Hz, 1 H, 7.19 (dd, J, 7.9, 1.5 Hz, 1 H, 6.97 (td, J, 7.5, 1.5 Hz, 1 H, 6.82 (td, J, 7.5, 1.5 Hz, 1 H, 3.25 (s, 3 H, 13C NMR (75.5 MHz, CDCl3, δ, 142.1, 139.0, 133.4, 129.8, 129.5, 128.5, 127.1, 123.9, 122.7, 45.6. HRMS: m/z calcd for C13H 12ClNOSNa [M, Na, 288.0220; found 288.0228, α]D25 12.25 (c 2.4, CHCl3, Compound 5 (procedure B, colorless liquid, yield 92, IR: 3060, 3015, 2949, 2921, 1732, 1585, 1442, 1298, 1262, 1176, 1033 cm-1 1H NMR (500 MHz, CDCl3, δ, 7.98-7.96 (m, 2 H, 7.60-7.57 m, 1 H, 7.53
    • 3).
  • 38
    • 34247269301 scopus 로고    scopus 로고
    • 3).
    • 3).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.