Preparation of 1, 3-Dioxolanes from Epoxides and Carbonyl Compounds under Neutral Conditions
نویسندگان
چکیده
منابع مشابه
Experimental and theoretical studies on efficient regeneration of carbonyl compounds from oximes under green, mild and completely heterogeneous nanocatalysis
New type of heterogeneous nanocatalyst for deoximation based on Tungsten oxide supported on mesoporousmolecular sieve MCM-41 was developed. This new system representes inexpensive and highly activeheterogeneous nanocatalyst for deoximation under green and mild reaction conditions.
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Alcohols and epoxides were generated by the addition of organohalides to carbonyl compounds in the presence of sodium metal impregnated with silica gel (Na@SiO2) in THF at 25 °C through a radical pathway. Under the same conditions, Schiff bases were also successfully converted to the corresponding amines. Furthermore, the reaction of aldehydes with α-haloesters or 4-(chloromethyl)-coumarin with...
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Diazo compounds, boranes, and acyl imines undergo a three-component Mannich condensation reaction under catalyst-free conditions to give the anti β-amino carbonyl compounds in high diastereoselectivity. The reaction tolerates a variety of functional groups, and an asymmetric variant was achieved using the (-)-phenylmenthol as chiral auxiliary in good yield and selectivity. These β-amino carbony...
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Al2(HPO4)3 was easily prepared and used as a solid acid in acetalization of carbonyl compounds at room temperature and under solvent-free conditions. The protection was done in short reaction times and in good to high isolated yields. The cheapness and availability of this reagent with easy procedure and work-up make this method attractive for the organic synthesis. Keywords—Acetalization, acid...
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ژورنال
عنوان ژورنال: Journal of Japan Oil Chemists' Society
سال: 1981
ISSN: 1884-2003
DOI: 10.5650/jos1956.30.468