Triphenylphosphine → HCID 67923948, compound

Participants

Reaction Steps

5-Bromo-2,5-dihydro-4-methoxy-3-methyl-2-oxofuran (6.44 g) was dissolved in dry benzene (100 mls). Triphenylphosphine was added and the solution stirred overnight at room temperature. The solution was decanted from the orange gum, which was then triturated with ether to give a colourless crystalline solid. The ether was decanted and the salt dried under vacuum. The decanted solution was concentrated to a gum. Trituration of this with ether resulted in a second crop of the phosphonium salt. The combined crops gave the title compound as a colourless solid, (14 41 g, 99%), νmax (CH2Cl2) 1775, 1665, 1435, 1390 and 1330cm-1 ; δH (CDCl3) 1.74 (3H, m), 3.95 (3H, s) and 7.5-8.1 (16H, m); [mass spectrum: +ve ion (3NOBA, Na+) M+ -Br, 389].

Provenance & Evidence