Oxalic Acid → 3-Pentyl-2-octenal

Participants

Reaction Steps

The compound was prepared according to the procedure described in Example 84 except that the reaction was worked up after 3 days. The following reagents were used: 6-undecanone (17 g), diisopropylamine (32.2 mL), 1.6M n-butyl lithium in hexane (143 mL), acetaldehyde N-tert-butylimine (14.75 mL), diethyl chlorophosphonate (16.6 mL) and tetrahydrofuran (200 mL). The work up, varied only in that the oxalic acid catalyzed hydrolysis was run overnight at room temperature, gave the crude aldehyde which was purified by HPLC (ether-hexane; 1:16.6) to yield 15.5 g of 3-pentyl-2-octenal as an oil.

Provenance & Evidence