Gerard V. Smith's Catalysis in Organic Syntheses 1977 PDF

By Gerard V. Smith

ISBN-10: 0126505500

ISBN-13: 9780126505504

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Exp. . 05 0 0 N's . 61 Exp. 119 starting material cinnamaldehyde, solvent MeOH. Exp. 126 starting material cinnamaldehyde, solvent MeOD. 0 0 53 ROLE OF ACETAL FORMATION TABLE 8 Hydrocinnamaldehyde Dimethyl Acetal Deuterium Distributions Exp. 101 Species Rand. Exp. 01 Exp. 119 0 0 N's Rand. Exp. . 1 0 N's 0 . 03 Exp. 101 starting material cinnamaldehyde dimethyl acetal. Exp. 119 starting material cinnamaldehyde. TABLE 9 3-Phenyl-1-Propyl Methyl’ Ether Deuterium Distributions^ Exp. 119 Exp. 101 Species Rand.

A. DISCUSSION The Role of Acetal Under our conditions, cinnamaldehyde hydrogenates very slowly. In the presence of methanol, catalyst and hydrogen (Table 2), it is converted to the dimethyl acetal which hydro­ genates readily. The relative rates of formation and dis­ appearance of the various components of the reaction mixture vary over the different Pd catalyst systems (Table 3); however, it is not possible from these experiments to deter­ mine whether these variations are due to physical phenomena, such as surface area and pore diffussion, or chemical phenomena, such as carrier modification of Pd-substrate bond strengths.

In order to obtain a benzyldiphenylphosphine function on the polymer. He has also treated the brominated polystyrene directly with diphenylphosphide and obtained a polymer supported triphenylphosphine function. These triphenylphosphines or benzyldiphenylphosphine can then be treated with metal carbonyls to form a variety of materials. The metal carbonyls that were employed are those of iron, molybdenum, nickel and cobalt. In the case of the cobalt carbonyls, he has also prepared dicobalt compounds attached to two triphenylphosphines on the polymer and connected by metal-metal bond.

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Catalysis in Organic Syntheses 1977 by Gerard V. Smith

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