60444-12-4Relevant articles and documents
Method for preparing N-aryl pyrrole compound
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Paragraph 0021; 0056; 0057, (2020/09/09)
The present invention relates to a method for preparing an N-aryl pyrrole compound. Furan containing different substituents, aromatic amine containing different substituents and a solid Lewis acid catalyst are mixed and placed in a closed reactor, and an N-aryl pyrrole compound with different substituents is prepared under certain catalytic conditions. The reaction temperature of the catalytic reaction condition is 140-210 DEG C. The solid Lewis acid catalyst is prepared by a sol-gel method, Hf is used as a core metal element, and a mesoporous molecular sieve SBA-15 is used as a carrier. According to the method, the catalyst is simple to prepare, low in cost, high in reaction activity, good in water resistance and structural stability and high in catalytic reaction yield; meanwhile, the Lewis acid type catalyst does not generate acid protons, the corrosion of the catalyst to equipment at high temperature is avoided, the post-reaction treatment is convenient, and the catalyst is renewable and environment-friendly.
SYNTHESIS OF PYRROLES FROM ALKYL trans-2-METHYLOXYCYCLOPROPYL KETONES
Romashin, Yu. N.,Nadim, Al Mohana,Kulinkovich, O. G.
, p. 1110 - 1111 (2007/10/02)
2-Alkylpyrroles were obtained by the reaction of alkyl trans-2-methoxycyclopropyl ketones with ammonium hydroxide.N-Substituted 2-alkylpyrroles were synthesized by the reaction of the indicated ketones with methylamine or aniline in acetic acid or methano
