Independent Independents , xxviii

The solvent exerts a strong influence on the product distribution. Starting from the same tetrahydrobenzylisoquinoline in MeCN, 82% XXXV are fonned. In MeCN-MeOH the intermediate can be effectively trapped by methanolysis and 58% XXXVI are obtained [159]. A major mechanistic study seeking common denominators in the oxidations leading to XXIV, XXVI, and XXVIII has been published [152b]. A stereochemical study indicated that the yield in the cyclization is independent on the pseudoequatorial or pseudoaxial position of the benzyl substituent in the benzyltetrahy-droisoquinoline [160]. 

The kinetics reported for acetylene hydrogenation are shown in Table XXVIII. Where comparison can be made, they seem to be independent of the physical form of the catalyst and of the support. 

A horizontal section of the MARS core with indication of control rod and control rod group positions, and the design of a CPS rod are shown in Fig. XXVIII-4 (1), (2), and (3) are numbers of independent mechanical protection systems. 

Overberger et al [59] reported on the polymerization of D(-)-j3-methyl-e-caprolactam (XXVIII) into a crystalline polymer. A study of solution properties of the polymer has shown that no ordered helix structure exists, that solvatation of the amide carbonyl is independent of polymer conformation, and that each mer is solvated independently. — OA a, j3, 7, and 5 methyl-e-caprolactams have been successively polymerized by Overberger et al [60] OA a-methyl-e-caprolactam racemized under polymerization conditions, i.e. in the presence of sodium hydride catalyst. 

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