Ketimines 3-Keto acetals

Imidoylstannanes may also be cleanly reduced to a-stannylamines in good yields by the use of sodium borohydride in ethanol at ice temperatures (equation 77)324. The same reagent may be used to reduce a,a-dihalo ketimines (equation 78) to /J,/J-dialkoxyamines (which are a-amino keto acetals)325. The products from this reaction are extremely useful intermediates for the synthesis of a wide variety of heterocyclic molecules. 

Ketazines, 395 Ketene, 76,275 Ketene thioaoetals, 284,413 Ketimines, 345 d-Keto acids, 538 a-Ketocarbenes, 100 7-Ketocholesteryl acetate, 51 5-Keto-6-cyano-5,6-secosteroids, 277... 

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