Benzene solution for

Swain and Eddy have queried the wide applicability of the S l and Sif2 mechanisms and favored a push-pull termolecular process for the reaction of pyridine with methyl bromide in benzene solution for example, they have suggested that the effects observed on the addition of methanol, phenol, p-nitrophenol, and mercuric bromide to the reaction mixture can be explained by an intermediate of type 168. ... 

Ortho esters were reduced to acetals. Refluxing with 0.25mol of lithium aluminum hydride in ether-benzene solution for 4 hours transformed 3-methyl-mercaptopropanoic acid trimethyl orthoester to 3-methylmercaptopropion-aldehyde dimethylacetal in 97% yield [1098]. 

This trihydride was converted to Cp2NbH(CO) by heating it in benzene solution for 1 nr at 80°C, under 1-2 atm CO, followed by removal of the solvent. 

The complexes MLa (M = Th, U) with HL = oc-, /J- or y-isopropyl tropolone are also known. Molecular weight determinations (benzene solution) for the thorium compounds indicate that the a compound is close to a dimer, whereas the 0 and y derivatives are approximately trimeric. The corresponding uranium(IV) complexes are all monomers. All three thorium compounds readily form monohydrates and the structure of the hydrated y-isopropyltropolonate is described on p. 1144. 

Reaction of 3a with butadiene or isoprene results in the formation of the 7i-allyl complexes 7a and 7b, respectively, which are stable in benzene solution for days at 25 °C.18 Hydrocarbon solutions of 3a react with 2,3-dimethylbutadiene to initially form the titanacyclopent-3-ene complex 8, isolated as a purple crystalline solid, which then subsequently reacts with generated free ethylene to form a mixture of the isomers 9 and 10 (Scheme 5). In an earlier paper, Rothwell and co-workers19... 

Zirconium tribenzyl complex 212 incorporating diisopropyltriazacyclonone, a type of mono-anionic, tridentate diamino-amido [/V,iV ,./V] ligand, was obtained via alkane elimination (Scheme 42) alternatively, this complex can also be prepared via either salt metathesis or amine elimination approaches.179 The crystal structure of 212 reveals a monomeric form on heating at 80 °C in benzene solution for 24 h, this complex undergoes elimination of 1 equiv. of toluene, affording complex 213 bearing a dianionic, acyclic, diamido-amino [/V-,iV,./V-] moiety. 

These explanations, however, are unlikely in view of the fact that the amine is certainly a much better ligand than the isocyanate or alcohol and therefore its coordination to the metal ion should be favored over that of the isocyanate. It was shown by Graddon and Ranna (8) that dialkyltin dicarboxylates form a 1 1 complex with tertiary amines quite readily. Using calorimetric techniques, these workers calculated the formation constants in benzene solution for numerous complexes of alkyltin carboxylates with tertiary amines. 

In all of the syntheses discussed, alkoxy derivatives of a-aminoaceto-phenone or of /3-phenethylamine were employed to supply the main structural outline of the isoquinoline system. Some of these amines are hard to obtain, especially if the resistant aromatic methoxyl groups are replaced by more sensitive substituents which may serve in the preparation of partly demethylated derivatives of papaverine or laudanosine. A significant innovation (60) which avoids the preparation of such unstable amines is the degradation of j3-phenylpropionic acid azides (hydrocinnamic acid azides) to the corresponding isocyanates, which add to the required phenylacetic acids probably with the intermediate formation of four-membered cyclic hemiacetals. The latter are transformed to A-carboxylic acids, which lose carbon dioxide and yield amides needed in the isoquinoline syntheses. In practice, the azide is heated with the phenylacetic acid in benzene solution for several hours, and the amide is isolated from the reaction mixture without difficulty. 

For example, the complex (OC)cpRh(/i-CH2)Rhcp(CO) does not decompose at reflux in benzene solution for two days it also resists long-term UV irradiation. The... 

Preparation of HRP Immobilized Substrate. A glass slide was dipped into a 10(3-aminopropyl)triethoxysilane/benzene solution for 8 h. A phosphate buffer solution containing a 530 units/ml HRP, a 1.7 mg/ml BSA, and a 0.8 % (vAr) GA was spotted on the silanized glass slide at intervals of 100 pm by a glass cs illary pen (tip radius, 20 pm). The substrate was then washed thoroughly with buffer solution. 

A glass slide was successively dipped into a 10 mM n-octadecyltrichlorosilane/ benzene solution for 8 h and a 500 fi ml anti-CEA/phosphate buffer solution for 2 h. Onto the substrate we drew lines at intervals of 30 [im with a glass capillary (tip radius, 5 pm) filled with a 2.0 pg/ml CEA/phosphate buffer solution. The substrate was then washed thoroughly with water. Polystyrene beads (Kodak, diameter 10 pm) adsorbing anti-CEA were prepared by soaking the bear beads into a 500 pg/ml anti-CEA /phosphate buffer solution for 2 h, followed by washing three times in a 0.1 M phosphate buffer solution. The anti-CEA adsorbed polystyrene beads/phosphate buffer solution was dispersed on the CEA patterned substrate. The bead-adsorbed substrate was gently washed with water. 

Porter and Wilkinson (1961)—benzene solution for ketones, hexane otherwise. 

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