Formaldehyde → HCID 86667174, compound

Participants

Reaction Steps

To 20.0 g (77.2 mmol) 10-Chloro-6,7,8,9-tetrahydro-5H-1,4,7,10a-tetraaza-cyclohepta[f]indene in 200 mL buffer (pH=5) 6.4 mL formaldehyde (37% in water, 84.9 mmol) and 19.7 g sodium triacetoxyborohydride (93.0 mmol) were added under cooling with ice and stirring was continued over night. The mixture was then diluted at 0° C. with K2CO3-solution (15% in water) and extracted with ethyl acetate. The organic layers were combined, dried (Na2SO4) and concentrated. The residue was then purified by column chromatography (silica, EtOAc/MeOH/NH4OH=9:1:0.1) to give the desired product.

Provenance & Evidence