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In the Friedel-Crafts alkylation of benzene, dialkylation is often a significant by-product. In the Friedel-Crafts acylation of benzene, diacylation is not a significant by-product. Which of the following is the primary reason for this difference?

When CO2 is bubbled through an ether solution of benzylmagnesium bromide, and the resulting mixture is acidified, phenylacetic acid is produced. Any unreacted benzylmagnesium bromide is converted to toluene in the acidification step. This reaction is described as a _____ process. a. carbonylation b. carboxylation c. carbaniolation d. cationation

The product of an aldol condensation reaction is generally favored if

When (2R)-cyanopentane is treated with PBr3 and pyridine followed by NaCN, the resulting product:

Which of the following species has a characteristic absorption at 1250 cm-1 in its IR spectrum? Ph = phenyl  

What product results when butanal reacts with potassium hydroxide in ethanol?

Which has the higher boiling point, 1-butanol or 1-butanamine? 

The aldol condensation is ________.

In the proton NMR spectra of aldehydes and ketones, the protons bonded to carbons adjacent to the carbonyl group typically fall into which of the chemical shift ranges below?

Traits that Echinoderms share include (choose all that are correct):