- Iron oxide-pillared clay catalyzed the synthesis of acetonides from epoxides
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FeOx-pillared clays (FeOx-pillared bentonite, FeOx-pillared hectorite and FeOx-pillared taeniolite) were synthesized by the intercalation of FeCl3 into clay interlayers and calcination. The synthesize
- Trikittiwong, Piyarat,Sukpirom, Nipaka,Shimazu, Shogo,Chavasiri, Warinthorn
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p. 104 - 107
(2015/03/18)
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- Iron oxide-pillared clay catalyzed the synthesis of acetonides from epoxides
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FeOx-pillared clays (FeOx-pillared bentonite, FeOx-pillared hectorite and FeOx-pillared taeniolite) were synthesized by the intercalation of FeCl3 into clay interlayers and calcination. The synthesize
- Trikittiwong, Piyarat,Sukpirom, Nipaka,Shimazu, Shogo,Chavasiri, Warinthorn
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p. 104 - 107
(2014/07/08)
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- Phosphonium salts and aldehydes from the convenient, anhydrous reaction of aryl acetals and triphenylphosphine hydrobromide
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The reactions of aryl acetals/ketals and triphenylphosphine hydrobromide gave the corresponding aldehydes/ketones and alkyl phosphonium bromides. This reaction was applied to convert acetals/ketals to the corresponding aldehydes/ketones under an anhydrous
- Ramanathan, Mani,Hou, Duen-Ren
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- Cu(OTf)2-catalyzed selective opening of aryl and vinyl epoxides with carbonyl compounds to give 1,3-dioxolanes
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Copper(II) triflate catalyzes the ring-opening of aryl- and vinyl-substituted epoxides with various carbonyl compounds to furnish 1,3-dioxolanes under mild conditions. Alkyl- and alkoxycarbonyl-substituted epoxides remain unchanged under reaction conditio
- Krasik, Pavel,Bohemier-Bernard, Mathieu,Yu, Qing
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p. 854 - 856
(2007/10/03)
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- Stereoelectronic effects in the DIBAL reduction of aryl-1,2-ethanediol benzylidene acetals
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Reduction of benzylidene acetal 8 with DIBAL-H selectively gave 4 in 89% yield. 1-Aryl-1,2-diol benzylidene acetals display unusual regioselectivity with electron withdrawing groups on the aryl group.
- Gauthier Jr., Donald R,Szumigala Jr., Ronald H,Armstrong III, Joseph D,Volante
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p. 7011 - 7014
(2007/10/03)
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- Transacetalation: a convenient, nonaqueous method for effecting the deprotection of isopropylidene and benzylidene derivatives of sugars
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Sugar isopropylidene and benzylidene derivatives can be readily deprotected under nonaqueous conditions by treatment of a dichloromethane solution of the protected sugar with an excess of a sacrificial glycol in the presence of a catalytic amount of p-toluenesulfonic acid.The reaction is conveniently monitored by GLC, and the fully or partially deprotected product precipitates from solution.
- Andrews, Mark A.,Gould, George L.
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p. 141 - 148
(2007/10/02)
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- N-Benzyl Pyridinium Salta as New Useful Catalysts for Transformation of Epoxides to Cyclic Acetals, Orthoesters, and Orthocarbonates
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In the presence of catalytic amount of N-(4-methoxybenzyl)-2-cyanopyridinium hexafluoroantimonate, the reaction of a few epoxides with aldehydes, ketones, lactones, and carbonates efficiently afforded corresponding cyclic acetals, orthoesters, and orthocarbonates under mild conditions.
- Lee, Sang-Bong,Takata, Toshikazu,Endo, Takeshi
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p. 2019 - 2022
(2007/10/02)
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