Sequential One-Pot Access to Molecular Diversity through Aniline Aqueous Borylation
摘要:
On the basis of our recently reported aniline aqueous borylation, molecular diversity was achieved in a one-pot process by combining other reactions such as esterification, Suzuki-Miyaura coupling, hydrogenolysis, or Petasis borono-Mannich.
retrievable nanocomposite was prepared by in situ polycondensation and entrapment of iron oxide nanoparticles. This material was found to be efficient in trapping excess electrophilic reagents such as carbonylcompounds, acid chlorides and isothiocyanates. Advantages of the new scavenger include facile preparation, high loading capacity, low cost, satisfactory swelling properties in polar solvents, and
An efficient and green La(OTf)3 catalyzed Petasis borono–Mannich reaction for the synthesis of tertiary amines
作者:Bijivemula N. Reddy、Chinthaparthi Radha Rani、S. M. Reddy、Madhvesh Pathak
DOI:10.1007/s11164-016-2551-6
日期:2016.10
tertiary amine derivatives have been prepared by a one-pot three-component Petasisborono–Mannichreaction of two different salicylaldehydes and 2-formylpyridine, substituted morpholine/piperidines and aryl boronic acids. These reactions were carried out under microwave irradiation using a catalytic amount of La(OTf)3 in a short reaction time. This procedure has the advantages of high conversions with excellent
nafion® 117, PEG-OSO3H, tween® 80, poly styrene –SO3H and chitosan for the preparation of alkylaminophenols through Petasisborono–Mannichreaction by one-pot three component condensation of o-hydroxy aldehydes, secondary amines, and various boronic acids. It was observed that the reaction was completed in a short period of time and the yield was optimum by virtue of chitosan heterogeneous catalyst. Furthermore
Three-component, solvent-free synthesis of Betti base catalyzed by sulfated polyborate
作者:Manisha S. Patil、Chetan K. Khatri、Ganesh U. Chaturbhuj
DOI:10.1007/s00706-018-2169-z
日期:2018.8
this work, efficient, mild, and eco-friendly procedure of 1-aminoalkyl-2-phenol/Betti base from one-pot three-component condensations of aldehyde, phenol, and morpholine in the presence of sulfated polyborate catalyst, under a solvent-free condition at 100 °C, is described. The key advantages of the present method are short reaction time, high yields, aqueous work-up procedure, low cost, stable, reusable
Microwave-assisted nanocatalysis: A CuO NPs/rGO composite as an efficient and recyclable catalyst for the Petasis-borono–Mannich reaction
作者:Anshu Dandia、Sarika Bansal、Ruchi Sharma、Kuldeep S. Rathore、Vijay Parewa
DOI:10.1039/c8ra05203d
日期:——
CuO NPs/rGO composite was synthesized and characterized by various analytical techniques an used as a recyclable catalyst for Petasis-borono–Mannich reaction under microwave irradiation.