2, 2′??Bifurylidene??5, 5′??diones, Coumarins, 3a, 7a??dihydro??1H??inden??1??ones, and 5H??furo [3, 2??b] pyran??5??ones from propyne and carbon monoxide

V Rautenstrauch, P Mégard, B Gamper…

Index: Helvetica Chimica Acta, , vol. 72, p. 811 - 824

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Citation Number: 9

Abstract

... Page 2. 812 HELVETICA CHIMICA ACTA - Vol. 72 (1989) In 1965, a group at BASF reported that coumarin (3) is formed besides 1 and 2 [ li]. ... Page 6. 816 HELVETICA CHIMICA ACTA - Vol. 72 (1989) 13 14 15 16 17,22 18 19 R 13 - 19 : R = Pentyl 21,22 : R = Me$i 20 :R= t-Bu ...