pulvinic-acid and oxalyl-chloride

pulvinic-acid has been researched along with oxalyl-chloride* in 1 studies

Other Studies

1 other study(ies) available for pulvinic-acid and oxalyl-chloride

ArticleYear
Uncatalyzed reaction of silyl ketene acetals with oxalyl chloride: a straightforward preparation of symmetrical pulvinic acids.
    The Journal of organic chemistry, 2005, Feb-18, Volume: 70, Issue:4

    [reaction: see text] Several natural pulvinic acids were synthesized. Silyl ketene acetals derived from methyl arylacetates (4 equiv) reacted with oxalyl chloride at -78 degrees C, without the need of adding a catalyst. After treatment of the crude diketones with DBU and acidification with hydrochloric acid, symmetrical pulvinic acids methyl esters were obtained. Saponification of the methyl esters afforded the corresponding pulvinic acids in 60-70% overall yields from oxalyl chloride.

    Topics: Acetals; Carboxylic Acids; Catalysis; Chlorides; Ethylenes; Isomerism; Ketones; Lactones; Methylation; Molecular Structure; Oxalates

2005