Additions to C-X &pgr;-Bonds, Part 2, Volume 2 by C.H. Heathcock

By C.H. Heathcock

Quantity 2 offers normally with the addition reactions of delocalized carbanions (enolates) and their artificial family members (metalloenamines, enol ethers, allyl organometallics) with carbonyl compounds, imines and iminium ions. significant emphasis is put on C-C bond-forming reactions akin to the aldol and Mannich reactions. Acylation reactions also are incorporated during this quantity. a number of issues that experience no longer formerly been reviewed are coated, together with using enzymatic aldol reactions in synthesis and the Passerini-Ugi reactions.

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Additional info for Additions to C-X &pgr;-Bonds, Part 2, Volume 2

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R. // J. Am. Chem.

INTRODUCTION The selective oxidation of hydrocarbons into hydroperoxides, primary products of oxidation is the most difficult problem because of the high catalytic activity of the majority of applied catalysts in ROOH decomposition. At the same time, the problem of selective oxidation of alkylarens (ethylbenzene and cumene) with molecular O2 in ROOH, is of current importance from the practical point of view in connection with ROOH use in large-tonnage productions such as production of propylene oxide and styrene (α-phenylethylhydroperoxide, PEH), or phenol and acetone (cumyl hydroperoxide) [1].

10 , mol/l (b) 45 40 35 30 25 20 15 10 5 0 0 10 20 30 t, h Figure 1. Continued on next page. 40 50 Modification of Catalytic Activity of Complexes of Acetylacetonates Fe(II,III) ... 10 , mol/l 100 90 80 70 60 50 40 30 20 10 0 0 20 40 t, h (d) 70 SPEH, % 60 50 40 30 20 10 0 5 10 15 20 C, % Figure 1. a. Kinetic of PEH (◊-1,-2) and PhOH (∆-3,c-4) communication in the course of the ethylbenzene oxidation, catalyzed with of {Fe(III)(acac)3 + (C2H5)4NBr(5·10-4 mol/l)} (◊-1,∆-2) or {Fe(III)(acac)3 + (C2H5)4NBr(5·10-4 mol/l) + H2O} (-2,c-4).

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