73407-87-1

Basic information

• Product Name: (3aR,4R,4aS,5S,7aR,8R,9aS)-5-Benzyloxy-4a,8-dimethyl-4-(tetrahydro-pyran-2-yloxy)-3a,4,4a,5,7a,8,9,9a-octahydro-3H-azuleno[6,5-b]furan-2-one
• Synonyms: (3aR,4R,4aS,5S,7aR,8R,9aS)-5-Benzyloxy-4a,8-dimethyl-4-(tetrahydro-pyran-2-yloxy)-3a,4,4a,5,7a,8,9,9a-octahydro-3H-azuleno[6,5-b]furan-2-one
• CAS NO: 73407-87-1
• Molecular Weight: 426.553
• Mol File: 73407-87-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (3aR,4R,4aS,5S,7aR,8R,9aS)-5-Benzyloxy-4a,8-dimethyl-4-(tetrahydro-pyran-2-yloxy)-3a,4,4a,5,7a,8,9,9a-octahydro-3H-azuleno[6,5-b]furan-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: (3aR,4R,4aS,5S,7aR,8R,9aS)-5-Benzyloxy-4a,8-dimethyl-4-(tetrahydro-pyran-2-yloxy)-3a,4,4a,5,7a,8,9,9a-octahydro-3H-azuleno[6,5-b]furan-2-one(73407-87-1)
• EPA Substance Registry System: (3aR,4R,4aS,5S,7aR,8R,9aS)-5-Benzyloxy-4a,8-dimethyl-4-(tetrahydro-pyran-2-yloxy)-3a,4,4a,5,7a,8,9,9a-octahydro-3H-azuleno[6,5-b]furan-2-one(73407-87-1)

Safety Data

• Hazardous Substances Data: 73407-87-1(Hazardous Substances Data)

Upstream product

• 71686-37-8 (3aα,4α,4aβ,5β,7aα,8α,9aβ)-3a,4,4a,5,7a,8,9,9a-Octahydro-4-hydroxy-4a,8-dimethyl-5-(phenylmethoxy)azuleno<6,5-b>-furan-2(3H)-one 
• 110-87-2 3,4-dihydro-2H-pyran 
• 71686-37-8 (3aα,4β,4aβ,5β,7aα,8α,9aβ)-3a,4,4a,5,7a,8,9,9a-Octahydro-4-hydroxy-4a,8-dimethyl-5-(phenylmethoxy)azuleno<6,5-b>-furan-2(3H)-one 

Downstream Products

• 3668-14-2 dl-Linifolin A 
• 5945-41-5 dl-Mexicanin I 

Relevant articles and documents

Helenanolides: Stereocontrolled Total Synthesis of dl-Bigelovin, dl-Mexicanin I, and dl-Linifolin A

Stereocontrolled total syntheses of the sesquiterpene lactones dl-bigelovin (11), dl-mexicanin I (12), and dl-linifolin A (13) are described.The syntheses start with the hydroazulenone 4 and proceed via the key epoxy alkohol 9.Elaboration of 9 into the tricyclic γ-lactone 14 dl-bigelovin. α-methylenation.Subsequent oxidation at C(4) completes the synthesis of dl-bigelovin.Epoxide opening of 9 with dilithioacetate provides access to tricyclic lactone 23 which gives way to 24 via reduction of ketone 25.Cleavage of the benzyl ether in 24 followed by α-methylenationand oxidation generates dl-mexicanin I.Acetylation of 12 affords dl-linifolin A.