@article { ISI:000249564600009,
	title = {Copper(II) ion exchanged A1SBA-15: a versatile catalyst for intermolecular hydroamination of terminal alkynes with aromatic amines},
	journal = {Journal of Catalysis},
	volume = {250},
	number = {2},
	year = {2007},
	month = {SEP},
	pages = {274-282},
	publisher = {ACADEMIC PRESS INC ELSEVIER SCIENCE},
	type = {Article},
	address = {525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA},
	abstract = {<p>The hydroarnination reaction offers a very attractive route for the synthesis of alkylated amines and their derivatives with no byproduct formation. AISBA-15 was synthesized by isomorphous substitution of aluminum into the framework of SBA-15, which induces the Bronsted acid sites, and these were exchanged with metal ions such as Cu2+, Zn2+, and Pd2+. The catalysts were characterized by XRD, N-2-sOrption, SEM, TEM, acidity measurements by FT-IR pyridine adsorption, H-2-TPR, (27)AI MAS NMR, and Si-29 MAS NMR. Hydroamination of phenylacetylene (PhAc) with 2,4-xylidine has been used as a test reaction, which gave N-(1-phenylethylidene)-2,4-dimethylaniline with no byproduct formation. CuAlSBA-15 and CuAIMCM-41 showed around three times greater activity in hydroamination of PhAc compared with Cu-clay and Cu-beta, due to the moderate Lewis acidity of Cu2+ present in mesoporous supports. The performance of the CuAlSBA-15 was also determined with different alkynes and amines to evaluate the catalyst{\textquoteright}s general applicability in hydroamination reactions. (c) 2007 Elsevier Inc. All rights reserved.</p>},
	keywords = {A1SBA-15, addition, alkyne, Amine, Copper catalyst, heterogeneous, hydroamination, ion exchange, Mesoporous},
	issn = {0021-9517},
	doi = {10.1016/j.jcat.2007.06.007},
	author = {Shanbhag, Ganapati V. and Joseph, Trissa and Halligudi, Shivaraj B.}
}
@article { ISI:000255189100003,
	title = {Chemoselective synthesis of beta-amino acid derivatives by hydroamination of activated olefins using AISBA-15 catalyst prepared by post-synthetic treatment},
	journal = {Journal of Molecular Catalysis A-Chemical},
	volume = {284},
	number = {1-2},
	year = {2008},
	month = {APR},
	pages = {16-23},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>beta-Amino acid derivatives have a wide variety of applications viz. in the synthesis of peptide analogues, precursor for amino alcohols, optically active amino acids, lactums and diamines. Chemoselective anti-Markovnikov hydroamination reaction of activated olefins was effectively used to synthesize beta-amino acid derivatives using AlSBA-15 and AlMCM-41 catalysts. These catalysts with different Si/Al ratios were synthesized by isomorphous substitution of aluminium into the framework of SBA-15, which induces the Bronsted and Lewis acid sites. The structural integrity of the catalysts was established by characterizing with XRD, N-2-sorption, TEM, NH3-TPD Al-27 MAS NMR and Si-29 MAS NMR techniques. Hydroamination of ethyl acrylate with aniline was used as a test reaction, which gave N-[2-(ethoxycarbonyl)ethyl] aniline with high selectivity. The performance of AlSBA-15 catalyst was also determined with different acrylates and amines to know the general applicability of the catalyst in hydroamination reactions. (C) 2008 Elsevier B.V. All rights reserved.</p>},
	keywords = {acrylate, activated olefin, addition, AlMCM-41, AlSBA-15, Amine, beta-amino acid, Catalyst, hydroamination, Mesoporous},
	issn = {1381-1169},
	doi = {10.1016/j.molcata.2007.12.025},
	author = {Shanbhag, Ganapati V. and Kumbar, S. M. and Halligudi, Shivaraj B.}
}
