143018-92-2

Upstream product

• 143018-91-1 1,6-dihydroxy-2-phenyl-5,6-dihydro-3a-azaphenalen-3(4H)-one 
• 143018-90-0 2-phenyl-1-phenylsulfonyloxy-3a-azaphenalen-3(4H)-one 
• 635-46-1 1,2,3,4-tetrahydroisoquinoline 
• 57625-49-7 4-hydroxy-3-phenyl-1-azatricyclo[7.3.1.0^5,13]trideca-3,5,7,9⁽¹³⁾-tetraen-2-one 
• 137786-78-8 2-phenyl-1-phenylsulfonyloxy-5,6-dihydro-3a-azaphenalen-3(4H)-one 
• 143018-89-7 6-bromo-2-phenyl-1-phenylsulfonyloxy-5,6-dihydro-3a-azaphenalen-3(4H)-one 
• 83-13-6 diethyl 2-phenylmalonate 

Relevant academic research and scientific papers

Heterocyclic Mesomeric Betaines. Part 6. Synthesis and a Cycloaddition of a Hetero Derivative of the 1-Methylenephenalene-3-methide Anion

Synthesis of the cross-conjugated heterocyclic mesomeric betaine 4 is reported.This mesomeric betaine 4 is isoconjugate with the odd alternant hydrocarbon anion 5 (R = Ph).Cycloaddition of the betaine 4 with dimethyl acetylenedicarboxylate yields the 1,4-