122-72-5Relevant articles and documents
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Chottard et al.
, p. 3531 (1977)
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Synthesis of acetoxyamides and acetates by zinc bromide assisted cleavage of Merrifield resin-bound ethers
Li, Wen-Ren,Yo, Ying-Chih
, p. 9085 - 9089 (1999)
A new method for the synthesis of acetoxyamides and acetates using Merrifield resin is described. The method uses zinc bromide to promote the conversion of Merrifield resin-bound ethers to acetates under ambient conditions. The cleavage products obtained are of high yields and chemical purity.
Cerium ammonium nitrate (CAN) for mild and efficient reagent to remove hydroxyethyl units from 2-hydroxyethyl ethers and 2-hydroxyethyl amines
Fujioka, Hiromichi,Hirose, Hideki,Ohba, Yusuke,Murai, Kenichi,Nakahara, Kenji,Kita, Yasuyuki
, p. 625 - 637 (2007)
Cerium ammonium nitrate (CAN) removed hydroxyethyl units from 2-hydroxyethyl ethers and 2-hydroxyethyl amines to produce alcohols and amines in good yields. Especially, removal of the 2-hydroxyethyl ethers from C2-symmetric diols, chiral 2,3-butanediol and chiral hydrobenzoin, was very useful for asymmetric syntheses using C2-symmetric diols. The reactions using dual abilities of CAN, i.e.,?the ability for removal of the 2-hydroxyethyl unit and the ability for acetal hydrolysis by a single electron transfer, were also achieved successfully. The reaction conditions were very mild and efficient, and many functional groups, which can be affected under normal conditions, were unaffected during the reaction.
Ruthenium-catalysed domino hydroformylation-hydrogenation-esterification of olefins
Beller, Matthias,Dühren, Ricarda,Franke, Robert,Jackstell, Ralf,Kucmierczyk, Peter,Schneider, Carolin
, p. 5777 - 5780 (2021/09/10)
A novel catalytic domino reductive hydroformylation-esterification of olefins is reported. The optimal protocol makes use of an inexpensive Ru carbonyl catalyst and uses acetic acid as both solvent and reactant. In general, moderate to good yields are obtained using aliphatic or aromatic olefins including industrially relevant di-isobutene. This atom-efficient catalytic transformation provides straightforward access to various acetate esters from unfunctionalized olefins.
Tropolonate salts as acyl-transfer catalysts under thermal and photochemical conditions: Reaction scope and mechanistic insights
Mai, Binh Khanh,Koenigs, Rene M.,Nguyen, Thanh Vinh,Lyons, Demelza J.M.,Empel, Claire,Pace, Domenic P.,Dinh, An H.
, p. 12596 - 12606 (2020/11/18)
Acyl-transfer catalysis is a frequently used tool to promote the formation of carboxylic acid derivatives, which are important synthetic precursors and target compounds in organic synthesis. However, there have been only a few structural motifs known to efficiently catalyze the acyl-transfer reaction. Herein, we introduce a different acyl-transfer catalytic paradigm based on the tropolone framework. We show that tropolonate salts, due to their strong nucleophilicity and photochemical activity, can promote the coupling reaction between alcohols and carboxylic acid anhydrides or chlorides to give products under thermal or blue light photochemical conditions. Kinetic studies and density functional theory calculations suggest interesting mechanistic insights for reactions promoted by this acyl-transfer catalytic system.
METHOD FOR PRODUCING IODIDE ESTER COMPOUND
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Paragraph 0127-0129; 0148; 0150; 0166; 0168; 0181; 0183, (2020/03/25)
PROBLEM TO BE SOLVED: To provide a method for producing an iodide ester compound that makes it possible to obtain a target iodide ester compound in high yield with high regioselectivity for iodine introduction. SOLUTION: A method for producing an iodide ester compound includes an iodide forming step in which: in the presence of a porous material, an ester compound represented by the following formula (2), iodine (I2), and an iodine-based oxide are reacted with each other, an iodide ester compound represented by the following formula (3) is formed. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPO&INPIT
