A New Strategy for the Synthesis of N-Substituted 2,5-Dimethylpyrroles in Heterogeneous Medium.

Pénieres, Guillermo; Soto, Verónica Riquelme; Álvarez, C.; García, O.; García, José González

doi:10.1515/hc.1998.4.1.31

Cited by 8 publications

(1 citation statement)

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“…The Paal–Knorr reaction is the most general synthetic method to prepare furans, tiophenes and pyrroles; according to this protocol, various N -substituted-pyrroles were obtained from primary amines and acetonylacetone using middle infrared irradiation as activating mode, and a natural clay as catalyst in the absence of solvent. The reaction proceeded with high yield in short reaction times ( Scheme 4 ) [ 13 ].…”

Section: Nucleophilic Addition To Carbonylic Substratesmentioning

confidence: 99%

Infrared Irradiation: Toward Green Chemistry, a Review

Escobedo

Miranda

Martínez

2016

IJMS

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This review provides a comprehensive overview of where infrared irradiation has been employed, mainly as regards activating green mode for natural products extractions, as well as to favor a reaction, highlighting its actual importance. It is also underlined that infrared irradiation heating has been around for a long time; however, only in the last eighteen years have many of its advantages been applied to satisfy a wide range of chemical processes, natural products extractions, and for the promotion of many kinds of reactions. In addition, it is brought to light that near infrared irradiation is more efficient than middle and far infrared irradiations, being easily controllable and with the quality of a fast responding heat source. Thus, the main objective of this review is to offer infrared irradiation as an alternative clean energy source to activate reactions, in addition to favor the selective extraction of natural products, all of which is within the Green Chemistry protocol. Some recent results from our laboratory are also included.

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Section: Nucleophilic Addition To Carbonylic Substratesmentioning

confidence: 99%