Formation of chiral β-lactams by photocyclisation of achiral N,N-diisopropylarylglyoxylamides in their chiral crystalline form
Abstract
A variety of N,N- diisopropylarylgIyoxylamides formed chiral crystals in which the originally symmetrical molecules were arranged in a chiral form. Photoreaction of the chiral crystals gave optically active β-lactam derivatives.