1-Bromopropane → HCID 21264512, compound

Participants

Reaction Steps

Analogously to Example 11b, 7.5 g (20 mmol) of 6-benzyloxy-4-(ethylsulfonyl)amino-2,2-dimethylchroman (Example 11a) were introduced in portions at 10° C. into a suspension of 0.82 g (27 mmol) of sodium hydride (80% dispersion) in 100 ml of DMA. After stirring at RT for 2 h, 2.4 ml (26.2 mmol) of 1-propyl bromide were added dropwise. After work-up, the residue was chromatographed on silica gel using n-heptane/EA (1:1) and 6.0 g of product were crystallized from appropriate fractions using petroleum ether, m.p. 102-103° C.

Provenance & Evidence