HCID 54083457, compound → HCID 53869552, compound

Participants

Reaction Steps

Shake 13β-propyl-3-methoxy-17,17-ethylenedioxygona-1,3,5(10),8,14-pentaene (2.5 g.) in benzene (80 cc.) with hydrogen at atmospheric pressure in the presence of a 2% palladium on calcium carbonate catalyst (0.9 g.); hydrogen uptake ceases after the requisite amount (161 cc.) for monohydrogenation has been absorbed. Filter and evaporate to obtain a gum, which one crystallizes from ethanol to obtain the title product (1.8 g.), m.p. 119°-120°; ultraviolet absorption peak at 278 mμ (ε15,300).

Provenance & Evidence