5129-36-2Relevant academic research and scientific papers
The first examples of selective carbonylation of n-butane and n-pentane
Akhrem, Irena,Orlinkov, Alexander,Afanas'eva, Lyudmila,Petrovskii, Pavel,Vitt, Sergei
, p. 5897 - 5900 (1999)
The polyhalomethane based superelectrophilic systems allowed us to accomplish the first efficient and selective carbonylation of n-butane and n- pentane with CO. Depending on the nature of the superelectrophilic system, Me3CCOOR or EtCH(Me)COOR (R = H, Alk) can be obtained at -20°C, 1 atm from n-butane and CO after water (α alcohol) treatment in = 90% yield based on the superelectrophilic system. Pentane reacts with CO in the presence d the CBr4 · 2AlBr3 superacid to give a single product, EtC(Me)2COOR, in almost quantitative yield.
Thermal Decomposition of Dialkoxyaluminum Carboxylates and Halocarboxylates
Stepovik,Zaburdaeva,Razuvaeva
, p. 1204 - 1209 (2007/10/03)
Thermal decomposition of diisopropoxyaluminum carboxylates (i-PrO)2AlOCOR (R = Pr, i-Pr, CH2Cl, CH2Br, CH2I, and CCl3) and i-PrOAl(OCOR)(OCOR') (R, R' = Me, Pr, i-Pr, i-Bu, and t-Bu) was studied. Diisopropoxyaluminum carboxylates derived from unsubstituted acids decompose to form mainly esters, whose yields decrease with increasing branching in the acid moiety. Thermolysis of diisopropoxyaluminum halocarboxylates yields esters and acetone as the product of oxidation of the alkoxy group.
Characterization of Intermediates in the Reaction of Ozone with Di-tert-butylacetylene. A Novel Pivaloylating System
Jenkins, Jerry A.,Mendenhall, G. David
, p. 3997 - 4000 (2007/10/02)
Reaction of di-tert-butylacetylene (1a) with ozone in -40 deg C aprotic solvents upon warming leads to pivalic anhydride, pivalil, and pivalic acid, with evolution of isobutane, isobutene, carbon dioxide, and carbon monoxide.Spectral and chemical evidence indicated the presence of at least two labile intermediates in the reaction.Ozonolysis of the alkyne in the presence of compounds containing a hydroxyl function led to their pivaloyl derivatives with incorporation of both tert-butyl groups, probably via fragmentation of an adduct of ROH to an intermediate carbonyl oxide.
