144849-42-3

Basic information

• Product Name: C₂₁H₂₂O₆
• Synonyms: C₂₁H₂₂O₆
• CAS NO: 144849-42-3
• Molecular Weight: 370.402
• Mol File: 144849-42-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: C₂₁H₂₂O₆(CAS DataBase Reference)
• NIST Chemistry Reference: C₂₁H₂₂O₆(144849-42-3)
• EPA Substance Registry System: C₂₁H₂₂O₆(144849-42-3)

Safety Data

• Hazardous Substances Data: 144849-42-3(Hazardous Substances Data)

Upstream product

• 7770-78-7 trans-2-(4''-hydroxy-3''-methoxybenzyl)-3-(3',4'-dimethoxybenzyl)butyrolactone 

Relevant articles and documents

Preparation of tetrahydrodibenzocyclooctene lignans and spirodienones by hypervalent iodine oxidation of phenolic dibenzylbutyrolactones

Treatment of the dibenzylbutyrolactone 18 with PhI(OCOCF3)2 in trifluoroethanol gives as the major product either the spirodienone 28 or the tetrahydrodibenzocyclooctene 29, depending upon the length of time allowed for the reaction. Reaction of a second dibenzylbutyrolactone 19 under the same conditions gives the products 33, 34, 36 and 38, while 20 gives 43 directly. These reactions provide the first syntheses of spirodienones such as 28 and 33, which have been postulated as intermediates in the biosynthesis of tetrahydrodibenzocyclooctene lignans.