4394-76-7Relevant articles and documents
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Dunkelblum,E. et al.
, p. 6 - 15 (1971)
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Synthesis of isocoumarins and α-pyrones via tandem Stille reaction/heterocyclization
Cherry, Khalil,Parrain, Jean-Luc,Thibonnet, Jerome,Buchene, Alain,Abarbri, Mohamed
, p. 6669 - 6675 (2007/10/03)
A general route to α-pyrones and 3-substituted isocoumarins from (Z)-iodovinylic acids 1a-f or 2-iodobenzoic acids 4a-c is described, including compounds bearing a substituent on the aromatic ring. Treatment of (Z)-β-iodovinylic acids 1a-f or 2-iodobenzoic acids 4a-c with various allenyl-tributyltin reagents in the presence of palladium acetate, triphenylphosphine, and tetrabutylammonium bromide in dimethylformamide provided good yields of the corresponding α-pyrones 3a-k or 3-substituted isocoumarins 5a-g via tandem Stille reaction and 6-endo-dig oxacyclization.
Compounds having protected hydroxy groups
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, (2008/06/13)
The present invention relates to compounds with protected hydroxy groups of formula (I) These compounds are precursors for organoleptic agents, such as fragrances, and masking agents and for antimicrobial agents. When activated, the compounds of formula (I) are cleaved and form one or more organoleptic and/or antimicrobial compounds.
