31646-64-7Relevant academic research and scientific papers
Regioselective Cleavage of Electron-Rich Double Bonds in Dienes to Carbonyl Compounds with [Fe(OTf)2(mix-BPBP)] and a Combination of H2O2 and NaIO4
Spannring, Peter,Yazerski, Vital A.,Chen, Jianming,Otte, Matthias,Weckhuysen, Bert M.,Bruijnincx, Pieter C. A.,Klein Gebbink, Robertus J. M.
, p. 3462 - 3466 (2015/08/06)
A method for the regioselective transformation of dienes to carbonyl compounds has been developed. Electron-rich olefins react selectively to yield valuable aldehydes and ketones. The method is based on the catalyst [Fe(OTf)2(mix-BPBP)] with an oxidant combination of H2O2 (1.0 equiv.) and NaIO4 (1.5 equiv.); it uses mild conditions and short reaction times, and it outperforms other olefin cleavage methodologies. The combination of an Fe-based catalyst, [Fe(OTf)2(mix-BPBP)], and the oxidants H2O2 and NaIO4 can discriminate between electronically different double bonds and oxidatively cleave the electron-rich bond in dienes to yield aldehydes and ketones in a regioselective manner. The reaction requires mild conditions (0-50 C) and short reaction times (70 min).
Oxidative dihydroxylation of alicyclic unsaturated hydrocarbons with vinyl- and norbornene fragments in pseudohomogenic system
Alimardanov, Kh. M.,Garibov,Abdullaeva, M. Ya.,Sadygov,Kuliev,Ismailov
, p. 63 - 71 (2013/04/10)
Oxidation of alicyclic unsaturated hydrocarbons (4-vinylcyclohexene, 5-vinylnorbornene, 5-cyclohexenylnorbornene, and 5-vinylbicyclooctene) with 30% hydrogen peroxide solutions and percarbamide is studied. Reaction was carried out at 40-70 C in the presence of heterogenized peroxocomplex compounds of molybdenum and tungsten formed "in situ" in the reaction of metal oxohalides with H3PO4, nano-dimensional particles of carbon material, and hydrogen peroxide. Main oxidation products of alicyclic diene hydro-carbons are the corresponding unsaturated epoxides and diols. Depending on the reaction condition their ratio varies in a wide range.
Process to produce 4-(2-sulfoethyl) cyclohexane, 1,2-diol from 4-vinylcyclohexane-1,2-diol
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Page 2; 3, (2008/06/13)
Disclosed herein is a process for preparing 4-(2-sulfoethylcyclohexane)-1,2 diol, at ambient condition and in the presence of a buffer and an initiator, from vinylcyclohexane-1,2-diol
Phosphorus compound
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, (2008/06/13)
The phosphorus-containing compound of the present invention is represented by the following formula (I), (II) or (III): wherein Z1, Z2 and Z3 each represents a cycloalkane, a cycloalkene, a polycyclic aliphatic hydrocarbon or an aromatic hydrocarbon rings which may have a substituent; R represents a halogen atom, a hydroxyl, a carboxyl, a halocarboxyl (haloformyl), an alkyl, an alkoxy, an alkenyl or an aryl groups; A represents a polyvalent group corresponding to an alkane; Y1, Y2 and Y3 each represents —O—, —S— or —NR1—, wherein R1 represents a hydrogen atom or an alkyl group; k is an integer of to 6; m is an integer of 0 to 2; n is an integer of not less than 1; q is an integer of 0 to 5; r is 0 or 1; and S is an integer of 1 to 4. The phosphorus-containing compound is excellent in heat resistance and is useful as flame retardants, plasticizers, or stabilizers.
CATALYTIC DIHYDROXYLATION OF CYCLOHEXENE DERIVATIVES
Alimardanov, Kh. M.,Suleimanova, E. T.,Ismailov, E. G.,Akhundova, A. A.
, p. 333 - 339 (2007/10/02)
An investigation has been made of the dihydroxylation of 4-vinylcyclohexene, individual methylcyclohexenes and a mixture of 1,3-dimethylcyclohexane isomers.It has been established that the most effective catalyst is a complex produced by the reaction of molybdenum oxybromide, acetic acid and hydrogen peroxide.The yield of corresponding diols in the presence of this complex is 46-83.3percent, with a process selectivity of 70.0-90.7percent.The dependence of the direction of oxidation of cyclo-olefinic hydrocarbons on the nature and concentration of the organic acids used has been determined.
