Solvent free synthesis of coumarin derivative by the use of AlSBA-1 molecular sieves
Solvent free synthesis of coumarin derivative by the use of AlSBA-1 molecular sieves
Mei Mei Peng(한서대학교); 장현태(한서대학교); Pushparaj Hemalatha(한서대학교); Mani Ganesh(한서대학교); Muthiahpillai Palanichamy(한서대학교)
20권 3호, 953~960쪽
초록
AlSBA-1 molecular sieves were synthesized successfully and used for the synthesis of coumarins throughPechmann condensation. The synthesized AlSBA-1 catalysts were characterized by XRD, BET, SEM, FTIR,TGA techniques. The synthesized materials possess large surface area with mesopores. Pechmanncondensation of 3-methoxyphenol and ethyl acetoacetate was carried out under solvent free conditionand 7-methoxy-4-methylcoumarin was the main product. The selectivity of the product was found to be74.04%. Among the synthesized catalysts, AlSBA-1(2) showed high activity than others due to highdensity of acid sites. Hence, AlSBA-1 molecular sieves a better choice of catalyst for the synthesis ofcoumarins.
Abstract
AlSBA-1 molecular sieves were synthesized successfully and used for the synthesis of coumarins throughPechmann condensation. The synthesized AlSBA-1 catalysts were characterized by XRD, BET, SEM, FTIR,TGA techniques. The synthesized materials possess large surface area with mesopores. Pechmanncondensation of 3-methoxyphenol and ethyl acetoacetate was carried out under solvent free conditionand 7-methoxy-4-methylcoumarin was the main product. The selectivity of the product was found to be74.04%. Among the synthesized catalysts, AlSBA-1(2) showed high activity than others due to highdensity of acid sites. Hence, AlSBA-1 molecular sieves a better choice of catalyst for the synthesis ofcoumarins.
- 발행기관:
- 한국공업화학회
- 분류:
- 화학공학