[Compounds similar to acyclovir. IV. A convenient method of synthesizing adenallene]

A convenient method for the synthesis of adenallen (9-(4-hydroxy-1,2-butadienil)adenine) is proposed. Adenallen was prepared in 30% yield by alkaline treatment of 9-(4-acetoxy-2-butinyl)adenine synthesized, in turn, by condensation of sodium derivative of adenine with 4-acetoxy-1-chlorbutine-2.