Both primary and secondary amines were readily aminolysized, but secondary amine gave relatively low yield. It appeared that the aminolysis had good selectivity since the intermediate Ⅲwas more readily attacked by N-nucleophiles than by 0- nucleophiles.

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The effects of reaction conditions on the catalytic activity have been examined and a more than 95% yield of γ-butyrolactone obtained. Moreover, the above results are comparable with the catalytic activity of the same catalyst for hydrogenation of maleic anhydride.

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The camera produces very good images with good colour, detail and sharpness straight from camera - unfortunately noise is high, and purple fringing is higher than average.

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Besides its well machinability, this kind of coating layer is resist...

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MWNT/GC showed the better catalytic effect on myricetin and the high sensitivity to the determination.

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