Sodium Nitrite → HCID 87480283, compound

Participants

Reaction Conditions

Reaction Steps

Tetrahydro-2H-1,3-oxazine-4-carboxylic acid (i.e. the product of Step A) (2.00 g, 15.3 mmol) was dissolved in 1 N hydrochloric acid (12.4 mL), and the solution was cooled to 0° C. Sodium nitrite (1.42 g, 20.6 mmol) was then added portionwise, and the reaction mixture was stirred for 1 h. The reaction mixture was then extracted twice with dichloromethane and once with ethyl acetate. The combined organic layers were washed with brine, dried over magnesium sulfate, filtered and concentrated under reduced pressure to give 1.29 g of the title compound as a solid. This compound was of sufficient purity to use in subsequent reactions.

Provenance & Evidence