156683-36-2

Upstream product

• 156683-23-7 6-<2,5-Bis(benzyloxy)-4-methyl-phenyl>-2,4-hexandion 
• 121746-70-1 4-<2,5-Bis(benzyloxy)-4-methyl-phenyl>-butan-2-on 
• 156683-29-3 (Z)-1-<2,5-Bis(benzyloxy)-4-methyl-phenyl>-5-(N-methyl-amino)-4-hexen-3-on 

Downstream Products

• 156683-42-0 (Z)-5-Methyl-2-<5-(N-methyl-amino)-3-oxo-4-hexenyl>-2,5-cyclohexadien-1,4-dion 

Relevant academic research and scientific papers

Investigations on the formation of 6-hydroxyindole in the Netizescu-reaction V: Cyclization of C-(quinonylalkyl) enaminone derivatives, I

The labile quinonylalkylenaminones 10a-c and 11a-c are synthesized and cyclized to the products 17, 21 and 22a-c. In solution the tricyclic systems 22a-c react to spirocompounds 19a-c and 20a-c. The structure of 22a is confirmed by X-ray analysis. Semiempiric quantum chemical calculations and Pearson's concept of hard and soft acids and bases are used to explain the observed reactions.