Question: Nitrites (RC ? N) react with Grignard reagents (R'MgBr). The reaction product from 2-methyipropanenitrile with methyl magnesium bromide has the following spectroscopic properties. Propose a

Nitrites (RC ? N) react with Grignard reagents (R'MgBr). The reaction product from 2-methyipropanenitrile with methyl magnesium bromide has the following spectroscopic properties. Propose a structure.

MS: M⁺ = 86

IR: 1715 cm^?1?

¹H NMR: 1.05 ? (6 H, doublet, J = 7 Hz); 2.12 ? (3 H, singlet); 2.67 ? (1 H, septet, J= 7Hz)

¹³C NMR: 18.2, 27.2, 41.6, 211.2 ?

CH3 CHCEN 1. CH3MGB 2. * 2-Methylpropanenitrile

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