HCID 86724410, compound → HCID 86724409, compound

Participants

Reaction Steps

To a solution of dimethyl(2,3,4,5-tetramethylcyclopenta-2,4-dien-1-yl)silyl trifluoromethanesulfonate (Compound C, 7.50 g, 22.8 mmol, 1.00 eq.) in ether (25 mL) at −35° C. was added lithium (1-(4-t-butylphenyl)indenide) (6.20 g, 24.4 mmol, 1.07 eq.). The reaction was stirred for 18 hours, and was then evaporated under vacuum. The residue was extracted with pentane (40 mL) and the extract was filtered. The resulting solution was evaporated under vacuum to give a thick oil. Yield 10.11 g (104%). 1H NMR(C6D6): δ 7.83 (d, 1H), 7.67 (d, 2H), 7.50 (d, 1H), 7.41 (d, 2H), 7.26 (m, 2H), 6.64 (s, 1H), 3.71, (s, 1H), 2.95 (br s, 1H), 1.95 (s, 3H), 1.93 (s, 3H), 1.84 (s, 3H), 1.82 (s, 3H), 1.30 (s, 9H), −0.06 (s, 3H), −0.36 (s, 3H).

Provenance & Evidence