CONVENIENT, EFFICIENT, AND GREEN METHOD FOR SYNTHESIS OF BIS (INDOLYL)METHANES WITH NANO SIO2 UNDER ULTRASONIC IRRADIATION

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GHODRATI KEIVAN; HOSSEINI SAIED HOSSEIN; MOSAEDI RASOL; KARAMI CHANGIZ; MALEKI FARIBA; FARROKHI AZITA; HAMIDI ZOHREH

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Journal: INTERNATIONAL NANO LETTERS (INL) Year:2013 | Volume:3 | Issue:3 Page(s): 1-4

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Title

CONVENIENT, EFFICIENT, AND GREEN METHOD FOR SYNTHESIS OF BIS (INDOLYL)METHANES WITH NANO SIO2 UNDER ULTRASONIC IRRADIATION

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Keywords

NANO SIO2

NANO CATALYSIS

BIS(INDOLYL)METHANE ULTRASONIC IRRADIATION

Abstract

A green and efficient procedure for the preparation of bis (indolyl) methanes via the condensation of indoles with various carbonyl compounds in the presence of catalytic amount of nano silica gel under ultrasonic irradiation in good to excellent yields (83% to 94%) in solvent-free condition is described. Short reaction time, easy and quick isolation of the products, environmentally friendly procedure, excellent chemo selectivity, and excellent yields are the main advantages of this procedure. Native nanosilica gel was used as an inexpensive and readily available catalyst without any support of reagent or modification on it. The reaction is carried out in solvent-free condition in the absence of ultrasonic irradiation at 80oC, too. This methodology offers significant improvements for the synthesis of bis (indolyl) methane's with regard to the yield of products, simplicity in operation, and green aspects by avoiding toxic catalysts and solvents. Recovery and recycling of the silica nanoparticle catalyst were also described.

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APA: Copy

GHODRATI, KEIVAN, HOSSEINI, SAIED HOSSEIN, MOSAEDI, RASOL, KARAMI, CHANGIZ, MALEKI, FARIBA, FARROKHI, AZITA, & HAMIDI, ZOHREH. (2013). CONVENIENT, EFFICIENT, AND GREEN METHOD FOR SYNTHESIS OF BIS (INDOLYL)METHANES WITH NANO SIO₂ UNDER ULTRASONIC IRRADIATION. INTERNATIONAL NANO LETTERS (INL), 3(3), 1-4. SID. https://sid.ir/paper/321350/en

Vancouver: Copy

GHODRATI KEIVAN, HOSSEINI SAIED HOSSEIN, MOSAEDI RASOL, KARAMI CHANGIZ, MALEKI FARIBA, FARROKHI AZITA, HAMIDI ZOHREH. CONVENIENT, EFFICIENT, AND GREEN METHOD FOR SYNTHESIS OF BIS (INDOLYL)METHANES WITH NANO SIO₂ UNDER ULTRASONIC IRRADIATION. INTERNATIONAL NANO LETTERS (INL)[Internet]. 2013;3(3):1-4. Available from: https://sid.ir/paper/321350/en

IEEE: Copy

KEIVAN GHODRATI, SAIED HOSSEIN HOSSEINI, RASOL MOSAEDI, CHANGIZ KARAMI, FARIBA MALEKI, AZITA FARROKHI, and ZOHREH HAMIDI, “CONVENIENT, EFFICIENT, AND GREEN METHOD FOR SYNTHESIS OF BIS (INDOLYL)METHANES WITH NANO SIO₂ UNDER ULTRASONIC IRRADIATION,” INTERNATIONAL NANO LETTERS (INL), vol. 3, no. 3, pp. 1–4, 2013, [Online]. Available: https://sid.ir/paper/321350/en

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