Yields in reactions with aliphatic aldehydes wrc ycry Ion-(cs, 5 2) while certain other carboiiyl com-poiiiicls (;. e.% pyridiiic.-~-carbo~ aldeliyde, p-dimetltyl-:~ miiiobenzaldcliyde and cycloheptanone) gave uiipiiri-fiablta mixture... Xi1 cxami~ iation of Table TI revealthat all infrartd spectra of Ib exhibit strong peaks near 6 4 arid 6.6 p, hupporting the assignment of DegrawI2 of at) sorption, duci to the triaxiiir ritig iiear 6.40 aiitf