I-Cyclopentenylacetic acid nnd 2-ketoherah~~ droc~ clo~ rnln-[b]-furan. Yield 41yp, n'," 1.4 ii1. The distillate\ vas con-sidered to be a misture of almost qual parts of l-ryrlopentenylacrtic arid 2nd the lactone 2-krtohc'x: ihydroc!. clo-penta [blfuran herniisc of the prearnrc of two rqually intrnsc carbonyl bands. Thr lartone cnrhonyl hiid nxs: it 5.65 p and the rarbosylic otrhonyl bwd n'ns at 5.84 p. Thp wr-1) osglic grollp was: I~ so ill cnvidrllcsc tllr cnrbosylic ...
