Formaldehyde → HCID 14988278, compound

Participants

Reaction Conditions

Reaction Steps

To 100 ml of p-dioxane were added N-(3-fluoro-4-pyridinyl)-N-(2-propynyl)-1H-indol-1-amine (3.0 g), pyrrolidine (1.2 g), paraformaldehyde (4 g) and CuCl (0.3 g) and this mixture was heated to 80° C. and stirred for 3 hours. The mixture was then cooled and filtered, and the filtrate was concentrated to yield an oil (5.8 g). This material was eluted with 5% methanol/DCM on a silica gel column via HPLC. The desired fractions were concentrated to yield an oil which solidified on standing (3.3 g). This material was then eluted with DCM on an alumina column. The desired fractions were concentrated to yield a solid (2.2 g), which was recrystallized from hexanes/ether (2:1) to yield a solid (1.5 g), m.p. 76°-78° C.

Provenance & Evidence