2-Ethylhexanoic acid structure

The concentration-time curve for the reactants is shown in Fig. 2, and the concentration-time curve for the products is depicted in Fig. 3. Examination of Fig. 3 shows that as well as the desired reaction product (the chlorohydrin ester), there are two other major product components. These were identified as 1,3-dichloropropan-2-ol (OL dichlorohydrin) and glycerol -1,3-di(2-ethylhexanoate) (hydroxy diester). The structure of the hydroxy diester was confirmed by its independent synthesis from glycidyl 2-ethyl hexanoate and 2-ethyl hexanoic acid. The yield of chlorohydrin ester was only 50.4%, the remainder of the 2-ethylhexanoic acid being converted to the undesirable hydroxy diester. Fig. 4 shows the structure of the products obtained in the 1 1 reaction. Fig. 5 depicts the formation of the hydroxy diester from glycidyl 2-ethylhexanoate and 2-ethyl-hexanoic acid. 

Kirmse and coworkers (Kirmse and Siegfried, 1989 Banert et al., 1986) intensively investigated the reactions shown in Scheme 7-21 first, by conducting the reactions with six structurally different amines, and second, by using for each of these deaminations 3-4 solvents of decreasing polarity (water, acetic, 3,3-dimethylbutyric, and 2-ethylhexanoic acid), as shown by their t(30) solvent parameters (see Reichardt, 1988). Water has a much higher nucleophilicity, however, than the carboxylic acids and, therefore, the results in water are not directly comparable with those for the other three solvents. Decreasing polarity of these carboxylic acids increases the extent of front-side attack of the internal nucleophile H2O via collapse of the... 

Draw the structural formula and give the lUPAC name for the ester that results when 3-ethylhexanoic acid reacts with phenol. 

Fig. 7 Effect of chain structure on the amount of aliphatic mono-caboxylic adds needed for monolayer coverage. Saturated acids squares), oleic add triangles), 2-ethylhexanoic acid diamonds)...

Molybdenum carboxylates These complexes, also known as molybdenyl car-boxylates , are derived from such carboxylic acids as naphthenic, 2-ethylhexanoic and octanoic acids. The basic structure of the molybdenyl group is a mononuclear dioxo-metal centre, (MoOy). They are prepared by condensation reactions of the... 

The rate-determining step is thus the dimerization of a coordinatively unsaturated 002(00)3 fragment. An alternate preparation of 00 (00)12 utilizes the reaction of a mixture of 002(00)3 and a soluble cobalt(II) salt of a weak acid (e.g., cobalt 2-ethylhexanoate) with hydrogen under pressure (145). Attempts to elucidate the structure of 001 (00)12 from its v(C0) frequencies (94) have not been entirely conclusive, and valence tautomerism has even (93) been postulated to... 

The synthesis of crystalline, syndiotactic 1,2-polybutadiene is also successful with compounds of titanium, cobalt, vanadium, and chromium [194,206-210]. Alcoholates [e.g., cobalt(II) 2-ethylhexanoate or titanium(III) butanolate] with triethylamine as cocatalyst, are especially well suited for this purpose. They are capable of producing polymers with up to 98% 1,2 structure. Amorphous 1,2-polybutadiene is produced with molybdenum(V) chloride and diethylmethoxyaluminum [211]. Addition of esters of carboxylic acids raises the vinyl content of the products [212]. The influence of the coordination at the center atom is remarkable. Trisallylchromium polymerizes 1,3-butadiene to 1,2-polybutadiene, while bisallylchromchloride gives 1,4-poly butadiene. 

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