Diastereoselective α‑Amination\nof <i>N</i>-<i>tert</i>-Butanesulfinyl Imidates\nUsing <i>N</i>‑Aryl‑<i>N</i>‑diphenylphosphinyldiazenes
Zheng-Fei Li (6685835)Yun Yao (5056934)Yan-Jun Xu (639271)Chong-Dao Lu (1393924)
Abstract
Diastereoselective\nα-amination of <i>N</i>-<i>tert</i>-butanesulfinyl\nimidates has been developed using <i>N</i>-aryl (or <i>N</i>-<i>tert</i>-butyl) <i>N</i>-diphenylphosphinyldiazenes\nas nitrogen sources. The chiral\n1-azaenolates derived from imidates undergo nucleophilic addition\nwith diazenes to give α-hydrazino imidates in good yields.
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