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Volumn , Issue 14, 2007, Pages 2267-2271

Practical preparation of diosphenols by ring opening of α,β-epoxyketones catalyzed by silica gel supported acids

Author keywords

Green chemistry; Peroxides; Regioselective; Ring opening; Supported catalysis

Indexed keywords

ALPHA BETA EPOXYKETONE; DIOSPHENOL DERIVATIVE; KETONE DERIVATIVE; PHENOL DERIVATIVE; SILICA GEL; UNCLASSIFIED DRUG;

EID: 34548727332     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-985584     Document Type: Article
Times cited : (14)

References (51)
  • 51
    • 34548776977 scopus 로고    scopus 로고
    • Typical Procedure for the Preparation of 3d: The mixture of substrate 4d (1.0 g, the mixed acid [2.0 mL, H2SO 4-HOAc (1:2 wt/wt, and silica gel (8.0 g) in THF (10 mL) was rotaevaporated in vacuum (<15 mmHg) at 70°C. After the solvent had been removed, the reaction was continued for another 3 min. The resultant non-stick solid was then washed with CH2Cl2 and the combined organic layers were washed with aq Na2CO3, brine and dried over Na2SO4. Removal of the solvent yielded the crude product, which was purified by chromatography to give the pure product 3d (0.81 g, 81%)as white crystals; mp 88-90°C (EtOAc-PE, α]D 20 +277.86° (c, 1.20, CHCl3, IR: 3386, 2958, 2937, 2871, 1739, 1661 cm-1. 1H NMR: δ, 6.17 (s, 1 H, 3.02-3.06 (m, 1 H, 2.61-2.75 (m, 4 H, 2.39-2.46 (m, 1 H, 2.07-2.09 m, 1 H
    • 13C NMR spectra are available upon request from the authors.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.