Methyl (3-methyl-1-butenyl) ether → 2-(2-Formyl-3-methylbutyl)-3-isopropenyl-1-methyl-1-cyclopentene

Participants

Reaction Steps

According to the procedure described in Example 7, by the reaction of 30.4 g of 3-isopropenyl-1-methyl-2-methylene-cyclopentan-1-ol with 50 g of methyl (3-methyl-1-butenyl) ether in the presence of 7 drops of 85% phosphoric acid there was obtained 2-(2-formyl-3-methylbutyl)-3-isopropenyl-1-methyl-cyclopent-1-ene in 45% yield; boiling point 0.005 = 55°-56°C; nD20 = 1.4808; IRfilm : μmax = 3080, 2725, 1725, 1642, 1460/40, 1390/70 and 890 cm-1. The compound has a cedar-like, woody, remotely floral fragrance.

Provenance & Evidence