2114-30-9Relevant academic research and scientific papers
Alkene Oxyalkylation Enabled by Merging Rhenium Catalysis with Hypervalent Iodine(III) Reagents via Decarboxylation
Wang, Yin,Zhang, Lei,Yang, Yunhui,Zhang, Ping,Du, Zhenting,Wang, Congyang
supporting information, p. 18048 - 18051 (2014/01/06)
Rhenium-catalyzed oxyalkylation of alkenes is described, where hypervalent iodine(III) reagents derived from widely occurring aliphatic carboxylic acids were used as, for the first time, not only an oxygenation source but also an alkylation source via decarboxylation. The reaction also features a wide substrate scope, totally regiospecific difunctionalization, mild reaction conditions, and ready availability of both substrates. Mechanistic studies revealed a decarboxylation/radical-addition/cation-trapping cascade operating in the reaction.
Lithium trifluoromethanesulfonate (LiOTf) as a recyclable catalyst for highly efficient acetylation of alcohols and diacetylation of aldehydes under mild and neutral reaction conditions
Karimi, Babak,Maleki, Jafar
, p. 4951 - 4954 (2007/10/03)
A variety of alcohols and aldehydes were reacted with acetic anhydride at room temperature in the presence of a catalytic amount of lithium triflate (LiOTf) to produce the corresponding esters and 1,1-diacetates, respectively, in good to excellent yields under essentially neutral reaction conditions. Sensitive functional groups such as PhCO2-, OMe, and OTBDMS ethers survived intact under the described reaction conditions.
Sonochemical reactions of lead tetraacetate with 4-substituted styrenes
Ando, Takashi,Kimura, Takahide,Leveque, Jean-Marc,Fujita, Mitsue,Luche, Jean-Louis
, p. 1124 - 1125 (2007/10/03)
A good linear free energy relationship was observed between the radical reactivity of the sonochemical reactions of 4-substituted styrenes with lead tetraacetate and the vapor pressure of the styrenes, indicating a probable control of the process by an intra-bubble activation.
The chemistry of acylals. Part I. The reactivity of acylals towards Grignard and organolithium reagents
Sydnes, Leiv K.,Sandberg, Marcel
, p. 12679 - 12690 (2007/10/03)
Aldehyde acylals have been prepared and reacted with Grignard and alkyllithium reagents. Acylals from formaldehyde furnished complex reaction mixtures when reacted with both reagents. Acylals of other aldehydes gave reaction mixtures that consisted mainly of an ester, generated by replacing one of the carboxy groups with the organic part of the organometallic reagent, and regenerated aldehyde. The esters were formed in the highest yields. Yields above 90% were experienced when the acylals were reacted with Grignard reagents under Barbier conditions.
