Solid state photolysis of inclusionmolecularcomplexes of N,N-dialkylpyruvamides with deoxycholicacid or cyclodextrin gave the corresponding β-lactams as main products. The chemo-, stereo- and regioselectivities of the solid state reactions were different from those of the reactions in solution. Asymmetric induction due to the chirality of deoxycholicacid or cyclodextrin was observed.
N-dialkyl α-oxoamides adsorbed on silicagel were similar to those in acidic methanol, which indicated that the acidity of silanol groups on the surfaces of silicagel played important roles. The photolysis of the amides on alumina resembled those in methanol. The results of the photoreactions also suggested the absence of strong constraint upon the molecular motions of the amides adsorbed on these adsorbents