Hindered amines. General synthesis of α-(tert-butylamino)-isobutyramides

α-($\text{tert}$-Butylamino)-isobutyramides ($\text{1}$) can be prepared from α-haloisobutyramides ($\text{2}$) and $\text{tert}$-butylamine with sodium hydroxide in Favorskii-like reactions.