تفاعل #4640

ord-04f489d6f4b84e0caced2494d503c25d

معادلة التفاعل

COC(=O)c1ccc(O)cc1O
2,4-dihydroxybenzoic acid methyl ester
ClCC1CO1
epichlorohydrin
O=C([O-])[O-].[K+].[K+]
potassium carbonate
COC(=O)c1ccc(OCC2CO2)cc1O
4-(2,3-epoxypropoxy)salicylic acid methyl ester

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

الإجراء التجريبي

By refluxing 34 g of 2,4-dihydroxybenzoic acid methyl ester with 185 g of epichlorohydrin and 35 g of potassium carbonate for 2 to 3 hours, and chromatographing the crude product on 100 g of silica gel (elution with toluene), 4-(2,3-epoxypropoxy)salicylic acid methyl ester having a melting point of 53°-55° is obtained.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US04727067uspto-grants-1988_02