39183-99-8

Upstream product

• 932-55-8 2-bromotropone 
• 103896-55-5 N-(1-Phenylvinylimino)triphenylphosphorane 
• 3839-48-3 2-chlorotropone 
• 82944-84-1 N-[(1E)-1-phenylethylidene]-P,P-diphenylphosphinic amide 
• 19617-13-1 N-benzenesulfonyltroponimine 
• 14990-66-0 1-(1-phenylvinyl)piperidine 
• 7196-01-2 4-(1-phenylvinyl)morpholine 
• 189757-24-2 N-(cyclohepta-2,4,6-trien-1-ylidene)methanesulfonamide 
• 855396-53-1 2-bromo-1-azaazulene 
• 98-80-6 phenylboronic acid 
• 539-80-0 Tropone 
• 17529-61-2 Tropone oxime 
• 698-84-0 7-Azido-1,3,5-cycloheptatrien 
• 16717-64-9 1-azidostyrene 

Relevant academic research and scientific papers

Effective methods for introducing some aryl and heteroaryl substituent onto 1-azaazulene nuclei

Introduction of aryl and heteroaryl groups onto 1-azaazulene ring was achieved by addition-elimination reaction and Suzuki coupling. Reaction of 2-chloro-1-azaazulenes with 2-aryllithium and 2-heteroaryllithium followed by dehydrogenation with o-chloranil

Synthesis of 1-Azaazulenes from Cycloheptatrienylmethyl Ketone O-Pentafluorobenzoyloximes by Palladium-Catalyzed Cyclization and Oxidation

Various 1-azaazulenes are synthesized from cycloheptatrienylmethyl ketone O-pentafluorobenzoyloximes by treatment with a catalytic amount of Pd(dba) 2-t-Bu3P (dba = dibenzylideneacetone) and triethylamine in the presence of MS 4A via alkylideneaminopalladium(II) intermediates generated by oxidative addition of the oximes to a Pd(0) complex.

Palladium-catalyzed synthesis of 1-azaazulenes from cycloheptatrienylmethyl ketone O-pentafluorobenzoyl oximes

Substituted 1-azaazulenes are synthesized from cycloheptatrienylmethyl ketone O-pentafluorobenzoyloximes by the intra-molecular Heck-type amination catalyzed by Pd(dba)2-(t-Bu)3P.

Novel preparation and reaction of N-benzenesulfonyl- and N-methanesulfonyltroponimines. New entry to 1-azaazulene derivatives

N-Benzenesulfonyl- and N-methanesulfonyltroponimines were prepared through the reaction of tropone oxime with benzenesulfinyl- and methanesulfinyl chloride. The troponimines reacted with enamines to give formal [8 + 2] cycloadducts, which subsequently und

Synthesis and reactivity of N-diphenylphosphinoyltroponimine: Synthetic entry into 1-azaazulene derivatives

A novel N-diphenylphosphinoyltroponimine (5), which is highly polarized and has a low lying LUMO, was prepared. The attempted reaction of 5 with enolate ions and enamines derived from cyclic ketones gave 1-azaazulene derivatives, albeit in low yields.

A New Route To 1-Azaazulene Ring System By The Reaction Of 1-(Diphenylphosphinyl)azaallyl Anions With Tropone Derivatives

The reaction of 1-(diphenylphosphinyl)azaallyl anions derived from the corresponding imines, with tropones underwent enamine-type alkylation and mainly followed by aza-Wittig reaction to give 1-azaazulene derivatives, in addition to a trace amount of 4H-4

On the Reaction of N-Vinyliminophosphoranes. Part 7. A Short New 1-Aza-azulene Synthesis

Thermal reaction of triphenyl(vinylimino)phosphorane derivatives with several tropones have been studied to provide a short new route to the 1-aza-azulene ring system. (1-Phenylvinylimino)-, vinylimino-, and a mixture of (1-butylvinylimino)- and (1-methylpent-1-enylimino)-triphenylphosphorane were treated with tropone and alkylated tropones in an enamine alkylation process, and the subsequent aza-Wittig reaction resulted in the formation of 1,8-dihydrocycloheptapyrroles.The pyrrole derivatives were easily dehydrogenated by nickel peroxide or manganese dioxide to give 1-aza-azulene derivatives.In a similar fashion, the iminophosphoranes were treated with 2-bromotropone or with 2-chlorotropone in the presence of triethylamine to give 1-aza-azulenes in a single step.The 1-aza-azulenes, which were halogenated on the seven-membered ring, were also prepared conveniently by the reaction of triphenyl(1-phenylvinylimino)phosphorane with 2,7-dibromo-, 2,4,7-tribromo-, and 2,3,5,7-tetrachlorotropone, albeit in modest yields.

ON THE REACTION OF N-VINYLIMINOPHOSPHORANES. 9. THE SYNTHESIS AND REACTION OF N-(1,3,5-CYCLOHEPTATRIENYL)IMINOPHOSPHORANES TO PROVIDE A NOVEL ROUTE TO 1-AZAAZULENES

The first syntheses of N-(2,4,6-cycloheptatrienyl)iminophosphoranes (3a, b) and their thermal conversion to N-(1,3,5-cycloheptatrienyl)iminophosphoranes (5a, b) have been studied.The kinetic study of the 1,5-hydrogen migration of 3a, b to N-(1,3,6-cyclohe

ON THE REACTION OF N-VINYLIMINOPHOSPHORANES. A NOVEL ROUTE TO 1-AZAAZULENE RING SYSTEM UTILIZING AZA-WITTIG REACTION

N-(1-Phenyl)vinyliminotriphenylphosphorane, conveniently prepared from α-azidostyrene and triphenylphosphine, readily undergoes an annulation reaction with tropone derivatives to result in the formation of 1-azaazulene ring system.