55766-20-6

Basic information

• Product Name: 9-propylidene-fluorene
• Synonyms: 9-propylidene-fluorene
• CAS NO: 55766-20-6
• Molecular Weight: 206.287
• Mol File: 55766-20-6.mol

Chemical Properties

• CAS DataBase Reference: 9-propylidene-fluorene(CAS DataBase Reference)
• NIST Chemistry Reference: 9-propylidene-fluorene(55766-20-6)
• EPA Substance Registry System: 9-propylidene-fluorene(55766-20-6)

Safety Data

• Hazardous Substances Data: 55766-20-6(Hazardous Substances Data)

Upstream product

• 1402812-40-1 C₂₃H₁₉NO 
• 922-67-8 propynoic acid methyl ester 
• 1402812-18-3 C₁₉H₁₉NO 
• 2216-94-6 phenylpropynoic acid ethyl ester 
• 4341-76-8 Ethyl 2-butynoate 

Downstream Products

• 4037-45-0 9-propyl-9H-fluorene 
• 55766-32-0 trans-9-Benzyl-9-(prop-1-enyl)fluoren 

Relevant articles and documents

Preparation and rearrangement of N-vinyl nitrones: Synthesis of spiroisoxazolines and fluorene-tethered isoxazoles

N-Vinyl nitrones derived from fluorenone have been prepared via a copper-mediated coupling between fluorenone oxime and vinyl boronic acids. These compounds undergo subsequent rearrangement and addition reactions that are distinct from the traditional [3 + 2] cycloaddition reactivity of nitrones. Thermal rearrangements of fluorenone N-vinyl nitrones give spiroisoxazolines, while treatment with alkynes provides fluorene-tethered isoxazoles. The scope and limitations of the preparation of fluorenone N-vinyl nitrones and their subsequent rearrangement and addition reactions are discussed.