ChemInform Abstract: Efficient and Chemoselective Conversion of Carbonyl Compounds to 1,3-Dioxanes...

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2000 dioxane derivatives dioxane derivatives R 0470 08 - 172 Efficient and Chemoselective Conversion of Carbonyl Compounds to 1,3-Dioxanes Catalyzed with N-Bromosuccinimide under Almost Neutral Reaction Conditions. — Ketones undergo acetalization consid- erably slower than aldehydes, thus chemoselective protection of aldehydes in the presence of ketones is possible. Additionally, it is found that acid-sensitive substrates such as Thp and Tbs ethers remain intact under these conditions. — (KARIMI, BABAK; EBRAHIMIAN, G. REZA; SERADJ, HASSAN; Org. Lett. 1 (1999) 11, 1737-1739; Dep. Chem., Inst. Adv. Stud. Basic Sci., Gava Zang, Zanjan, Iran; EN) 1

Transcript of ChemInform Abstract: Efficient and Chemoselective Conversion of Carbonyl Compounds to 1,3-Dioxanes...

Page 1: ChemInform Abstract: Efficient and Chemoselective Conversion of Carbonyl Compounds to 1,3-Dioxanes Catalyzed with N-Bromosuccinimide under Almost Neutral Reaction Conditions.

2000 dioxane derivatives

dioxane derivativesR 0470

08 - 172Efficient and Chemoselective Conversion of Carbonyl Compoundsto 1,3-Dioxanes Catalyzed with N-Bromosuccinimide under AlmostNeutral Reaction Conditions. — Ketones undergo acetalization consid-erably slower than aldehydes, thus chemoselective protection of aldehydes inthe presence of ketones is possible. Additionally, it is found that acid-sensitivesubstrates such as Thp and Tbs ethers remain intact under these conditions.— (KARIMI, BABAK; EBRAHIMIAN, G. REZA; SERADJ, HASSAN; Org.Lett. 1 (1999) 11, 1737-1739; Dep. Chem., Inst. Adv. Stud. Basic Sci., GavaZang, Zanjan, Iran; EN)

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