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dahuihui(½ð±Ò+4, ·­ÒëEPI+1): ºÜºÃ£¡ 2011-03-01 14:51:25
As 1,2-isomer has quite different chemical shifts from that of the corresponding 1,4-isomer, the ratio of these isomers in the products of NaBH4 reduction can be easily estimated from the integral data of the nmr spectrum of the products.The results are given in Table 3.

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