Acetic Acid → HCID 54554829, compound

Participants

Reaction Steps

A mixture of 3.04 g (7 mmol) of a compound II (R1, R2 =CH3 ; R3, R5, R6 =H; R4 =CH2CH=CH2), 0.45 ml (~5.8 mmol) of trifluoroacetic acid and 5.0 ml of glacial acetic acid was stirred at 70° for 2 hours and worked up as described in Example 5. 2.00 g (=65.8% yield) of the compound I (R1, R2 =CH3 ; R3, R5, R6 =H; R4 =CH2CH=CH2) were obtained, melting point 189°.

Provenance & Evidence