메뉴 건너뛰기




Volumn 38, Issue 3, 2009, Pages 248-249

Radical addition of alkyl halides to 2-methylene-1,3-dithiane monoxide as a ketene equivalent

Author keywords

[No Author keywords available]

Indexed keywords


EID: 66149141119     PISSN: 03667022     EISSN: 13480715     Source Type: Journal    
DOI: 10.1246/cl.2009.248     Document Type: Article
Times cited : (7)

References (19)
  • 2
    • 67650370553 scopus 로고    scopus 로고
    • Selected examples
    • Selected examples:
  • 16
    • 84869341549 scopus 로고    scopus 로고
    • Experimental procedure: A benzene (1.0 mL) solution of 2-methylene-1, 3-dithiane 1-oxide (1a, 49.4 mg, 0.33 mmol, 2-bromo-2-methylpropane (0.11 mL, 0.99 mmol, and 2, 2'-azobis (isobutyronitrile, 5.0 mg, 0.030 mmol) was placed in a flask under an atmosphere of argon. Then, a benzene (1.0 mL) solution of tributy kin hydride (0.18 mL, 0.66 mmol) was added over 1 h with a syringe pump at reflux. After the addition was completed, the mixture was stirred for an additional 1 h at the same temperature. The reaction mixture was poured into saturated aqueous NaHCO3 (5 mL) and extracted with EtOAc (3 × 10 mL, The combined organic layer was dried over anhydrous Na 2SO4 and concentrated in vacuo. Purification by chromatography on silica gel (hexane/AcOEt=1/2) provided 2-(2, 2-dimethylpropyl, 1, 3-dithiane 1-oxide 3a, 58.0 mg, 84
    • 4 and concentrated in vacuo. Purification by chromatography on silica gel (hexane/AcOEt=1/2) provided 2-(2, 2-dimethylpropyl) -1, 3-dithiane 1-oxide (3a, 58.0 mg, 84%).
  • 17
    • 0002080310 scopus 로고    scopus 로고
    • Smooth hydrogen abstraction from triphenyltin hydride would increase the efficiency of the reaction, because of the weaker Sn-H bond of triphenyltin hydride. See: C. Chatgilialoglu, M. Newcomb, Adv. Organomet. Chem. 1999, 44, 67
    • Smooth hydrogen abstraction from triphenyltin hydride would increase the efficiency of the reaction, because of the weaker Sn-H bond of triphenyltin hydride. See: C. Chatgilialoglu, M. Newcomb, Adv. Organomet. Chem. 1999, 44, 67.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.