6275-80-5Relevant articles and documents
Absence of toxicity in Swiss mice following treatment with 7-acetoxy-4-aryl-3,4-dihydrocoumarin: Acute and repeated-dose toxicity study
Saldanha, Gláucio Barros,Saldanha, Glaucia Barros,de Sousa, Marina Rebeca Soares Carneiro,Oliveira, George Laylson da Silva,da Silva, Ana Paula dos Santos C.L.,David, Jorge M.,David, Juceni Pereira
, p. 75 - 82 (2018/02/14)
Neoflavonoids, which are classified as 4-arylcoumarin (neoflavone), 3,4-dihydro-4-arylcoumarin and neoflavene, have been the subject of a number of studies with respect to their therapeutic potential and, despite promising in vitro, ex vivo and in vivo ph
Molecular iodine catalyst promoted synthesis of chromans and 4-aryl-3,4-dihydrobenzopyran-2-ones via [3+3] cyclocoupling
Naik, Mayuri M.,Kamat, Durga P.,Tilve, Santosh G.,Kamat, Vijayendra P.
, p. 5221 - 5233 (2014/12/10)
Molecular iodine as an inexpensive catalyst is described in the construction of 2-substituted or 2,2-disubstituted chromans and 4-aryl-3,4-dihydrobenzopyran-2-ones via [3+3] cyclocoupling. For the synthesis of chromans, phenols and allylic alcohols were refluxed in chloroform in presence of 20 mol % I2while [3+3] cyclocoupling of phenols and cinnamic acids proceeded to give 4-aryl-3,4-dihydrobenzopyran-2-ones using 30 mol % I2. Later reaction occurs via a tandem hydroarylation-esterification process at 120-130 °C under solvent free conditions. Chromans were obtained in 20-92% yields and substituted 4-aryl-3,4-dihydrobenzopyran-2-ones were obtained in 5-85% yields.
Microwave-assisted synthesis of derivatives of chromanones
Barbry,Champagne
, p. 78 - 79 (2007/10/03)
A variety of chromanones are prepared from resorcinol and phloroglucinol in four steps: two of these reactions are conducted under microwave irradiation, the synthesis of cinnamic acids and the cyclisation of N-cinnamoylazoles.
