The Influence of substituents on the optical rotatory power of organic compounds: the isomeric methoxy and nitro-benzoic esters of active secondary β-octyl alcohol
Numbers, Annie Hutton
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The investigation of a number of optically activeoctyl esters of 0-, m-, and p- substituted benzoicacids reveals a regularity in the influence of substituents in the ortho-position.The m-directive or positive nitro and carboxyl groups increase the rotation of octyl benzoate, whereas the o- and p~ directive or negative methoxy and chloro groups decrease the rotation. Further, the relative influence of these groups with respect to hydrogen is in agreement with their relative influence on the rotation of menthyl benzoate and with the irrelative influence on the substitution of benzene.