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Volumn 46, Issue 5, 2005, Pages 783-786

Aerobic oxidation of primary alcohols in the presence of activated secondary alcohols

Author keywords

Aerobic oxidation; Aldehyde; Oxygen; Photo irradation; Primary alcohol; Ru(salen) complex

Indexed keywords

1 PHENYLETHANOL; ALCOHOL DERIVATIVE; DECANOL; METHYL GROUP; NITROSO DERIVATIVE;

EID: 11844252598     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2004.12.010     Document Type: Article
Times cited : (25)

References (45)
  • 1
    • 0000676907 scopus 로고
    • B.M. Trost I. Fleming S.V. Ley Pergamon Oxford
    • S.V. Ley, and A. Madin B.M. Trost I. Fleming S.V. Ley Comprehensive Organic Synthesis Vol. 7 1991 Pergamon Oxford 251 289
    • (1991) Comprehensive Organic Synthesis , vol.7 , pp. 251-289
    • Ley, S.V.1    Madin, A.2
  • 2
    • 0002808974 scopus 로고
    • B.M. Trost I. Fleming S.V. Ley Pergamon Oxford
    • T.V. Lee B.M. Trost I. Fleming S.V. Ley Comprehensive Organic Synthesis Vol. 7 1991 Pergamon Oxford 291 303
    • (1991) Comprehensive Organic Synthesis , vol.7 , pp. 291-303
    • Lee, T.V.1
  • 3
    • 0000753243 scopus 로고
    • B.M. Trost I. Fleming S.V. Ley Pergamon Oxford
    • G. Procter B.M. Trost I. Fleming S.V. Ley Comprehensive Organic Synthesis Vol. 7 1991 Pergamon Oxford 305 327
    • (1991) Comprehensive Organic Synthesis , vol.7 , pp. 305-327
    • Procter, G.1
  • 40
    • 11844274359 scopus 로고    scopus 로고
    • note
    • In the course of our study on asymmetric desymmetrization of meso-diols using (ON)Ru(salen) complexes as catalysts, we found that the nature of the apical ligands of the complexes affects the selectivity of the reaction (Ref. 8b)
  • 41
    • 11844256717 scopus 로고    scopus 로고
    • note
    • 3,5-Di(1-ethyl-1methylpropyl)-2-hydroxybenzaldehyde was prepared from phenol in five steps: (i) treatment of phenol with 3-methyl-2-pentene (1 equiv) in the presence of HY zeolite (30 wt%) at 80°C (95%), (ii) treatment of the resulting 5-(1-ethyl-1methylpropyl)phenol with 3-methyl-2-pentene (0.35 equiv) in the presence of HY zeolite (30 wt%) at 80°C (85% based on 3-methyl-2-pentene used), (iii) protection of 3,5-di(1-ethyl-1methylpropyl) phenol as an MOM ether by treating it with MOMCl and NaH in THF at rt (>99%), (iv) treatment of the resulting MOM ether with sec-BuLi in THF at -78°C followed by N,N-dimethylformamide at -78°C ∼ rt (96%), and (v) hydrolysis of the MOM-protected hydroxybenzaldehyde with 2-propanol saturated with HCl at rt (>99%)
  • 42
    • 11844265209 scopus 로고    scopus 로고
    • note
    • Although we had reported that the relative reaction ratio between 7 and 8 is >12 (Ref. 9a), the present study revealed that it is 15
  • 43
    • 11844286629 scopus 로고    scopus 로고
    • note
    • 6 but its oxidation was also carried out in chloroform-d
  • 44
    • 11844291681 scopus 로고    scopus 로고
    • note
    • Irradiation was continued during the reaction. The role of photo-irradiation is twofold: (i) dissociation of the apicalnitrosyl ligand and (ii) acceleration of single electron transfer from Ru(III) species to molecular oxygen. The detailed mechanism of the reaction will be discussed elsewhere
  • 45
    • 11844268411 scopus 로고    scopus 로고
    • note
    • Reaction could be carried out in 5 mmol scale in a round-bottomed flask (100 mL) with three halogen lamps (150 W). The reaction in larger scale needs a more potent light source, because the reaction mixture is colored brownish red due to the presence of Ru complexes


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.