3338-56-5

Basic information

• Product Name: ω-acetyllongifolene
• Synonyms: ω-acetyllongifolene
• CAS NO: 3338-56-5
• Molecular Weight: 246.393
• Mol File: 3338-56-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: ω-acetyllongifolene(CAS DataBase Reference)
• NIST Chemistry Reference: ω-acetyllongifolene(3338-56-5)
• EPA Substance Registry System: ω-acetyllongifolene(3338-56-5)

Safety Data

• Hazardous Substances Data: 3338-56-5(Hazardous Substances Data)

Upstream product

• 475-20-7 longifolene 
• 108-24-7 acetic anhydride 

Relevant articles and documents

Kondakof Acylation of Logifolene/Camphene: A Comparative Study Using Boron Trifluoride Etherate/Stannic Chloride as Catalysts

The Kondakof acylation of the ectocyclic methylene moiety in comphene (1) and its isoprene homologue longifolene (2) has been studied in acetic anhydride using BF3*OEt2/SnCl4 as catalysts.Ac2O-BF3*OEt2 fails to acylate (1) but gives isobornylacetate (3) (46percent) as the sole product.Acylation of (1) with Ac2O-SnCl4 affords ω-acetyl comphene (4) in a negligible yield (2percent) along with (3) in a much reduced yield (19percent).In sharp contrast, longifolene (2) generates ω-acetyllongifolene (5) with both the catalysts: BF3*OEt2 (24percent) and SnCl4 (16percent).The other compounds isolated in the former case are isolongifolene (6) (50percent) and transannular acetate (7) (2percent); in the latter case, (6) (17percent), (7) (5percent) and the novel tetracyclic methylketone (8) (11percent) are the co-products.The precurser for (8) has been shown to be the isomerized hydrocarbon (6), on direct acylation with SnCl4 generates (8).