Hydroquinone → HCID 20383997, compound

Participants

Reaction Steps

408 g of allo-ocimene (85% 4E 6Z, 15% 4E 6E) and 202 g of acrolein were placed in a stainless steel vessel which is equipped to withstand a high internal pressure at elevated temperatures. 1 gm of hydroquinone, a polymerisation inhibitor, was added. The air in the vessel was displaced with nitrogen and the vessel closed. The temperature was raised to 145°-150° C. and maintained in the range for 7.5 hours. The maximum pressure recorded was 105 psi. The reaction mixture was then distilled and a mixture of four aldehydes collected which represented a 66% yield of the desired product. The percentages of adducts were A 4%, B 11%, C 74% and D 11% where the letters A, B, C, D represent the isomers denoted as such in Example 1.

Provenance & Evidence