Methanol → HCID 87137706, compound

Participants

Reaction Steps

3,4-Dihydroisoquinolinium (1.31 g, 10.0 mmol) was dissolved in 3 ml MeOH in a 3-neck 25 mi round bottom flask fitted with a condenser, drying tube and stirrer bar, and cooled in an ice bath. n-Octyt p-toluenesulfonate (2.84 g, 10.0 mmol)*, dissolved in 7.0 ml methanol, was added dropwise over about 7 minutes via an addition funnel. The ice bath was removed and replaced with an oil bath and the colorless clear solution heated to reflux for at least 8 hours during which time the reaction solution lo turned yellow. Removal of the methanol in vacuo gave slightly colored solid product which was triturated with about 7.5 ml acetone. The acetone insoluble solids were filtered, washed with more acetone and dried in a vacuum desiccator. Yield of colorless solids was 1.91 g. A second batch of solids was recovered from the acetone flitrate/washing and filtered, washed with acetone and dried to give 0.31 gm colorless solids. 1H NMR (CDCl3, 200 MHz) δ 9.70 (1H, s, C1), 7.00-8.10 (8H, m), 4.20 (2H, t) 4.00 (2H, t), 3.25 (2H, t), 2.30 (3H, s), 1.80 (2H, m), 1.20 (10H, m), 0.87 (3H, t)

Provenance & Evidence