- A general palladium-catalyzed carbonylative synthesis of chromenones from salicylic aldehydes and benzyl chlorides.
A general palladium-catalyzed carbonylative synthesis of chromenones from salicylic aldehydes and benzyl chlorides.
Chemistry (Weinheim an der Bergstrasse, Germany) (2013-08-14)
Xiao-Feng Wu, Lipeng Wu, Ralf Jackstell, Helfried Neumann, Matthias Beller
PMID23939874
ABSTRAKT
Cute CO! An interesting and straightforward procedure for the carbonylative synthesis of chromenones from readily available salicylic aldehydes and benzyl chlorides has been developed (see scheme; DPPP = 1,3-bis(diphenylphosphino)propane). In the presence of a palladium catalyst, various coumarins were produced in good to excellent yields.
MATERIAŁY
Numer produktu
Marka
Opis produktu
Salicylic acid, European Pharmacopoeia (EP) Reference Standard
Supelco
Salicylic acid, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
Sigma-Aldrich
Salicylic acid, meets analytical specification of Ph. Eur., BP, USP, 99.5-100.5% (calc. to the dried substance)
Supelco
Salicylic acid, 1.0 mg/mL in acetonitrile, ampule of 1 mL, certified reference material, Cerilliant®