What 1H coupling patterns (singlets, doublets, triplets,etc) would you expect from the following compounds?

Question

$C_1-CH_2-CH_2-CH_2-C_1$
$(CH_3)_2-CH-CO-CH_3$

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Answer 1 · 2016-06-25T16:47:43

For the alkyl chain, I would expect a mess. For the carbonyl, a doublet (6H), a septet (1H), and a singlet (3H).

For your $C_1CH_2CH_2CH_2C_1$ fragment I don't know. Are the $C_1's$ the same?

For $(H_3C)_2CHC(=O)CH_3$ , we would first integrate the spectrum, and get a $6:1:3$ integrand ratio, a doublet, a septet, and singlet.