تفاعل #3862

معادلة التفاعل

6-methoxy-4-benzopyranone

triethylamine

→

product

6-Methoxy-4-hydroxy-2,3-dihydrobenzopyran

المذيبات

ethanol

ظروف التفاعل

المعالجة

1. 1
   ترشيحThe reaction mixture is filtered
2. 2
   أخرىevaporated in vacuo

الإجراء التجريبي

A solution of 6-methoxy-4-benzopyranone (31.6 g), triethylamine (4.9 ml) and 10% palladium on carbon (3.16 g) in absolute ethanol (1.7 l) is stirred under an atmosphere of hydrogen for 19 hours. The reaction mixture is filtered and evaporated in vacuo yielding the desired hydrogenated product as a pale yellow liquid.

المصدر