@article { ISI:000381122100030,
	title = {Single pot transfer hydrogenation and aldolization of furfural over metal oxide catalysts},
	journal = {Catalysis Letters},
	volume = {146},
	number = {8},
	year = {2016},
	month = {AUG},
	pages = {1611-1619},
	publisher = {SPRINGER},
	address = {233 SPRING ST, NEW YORK, NY 10013 USA},
	abstract = {<p>One pot catalytic transfer hydrogenation (CTH) of furfural to furfuryl alcohol (FAL) by using hydrogen producing alcohols and simultaneous aldolization of carbonyl compounds produced during CTH, with furfural was achieved over non-noble metal oxides with bifunctional sites. Basic sites of MgO responsible for abstraction of proton showed complete conversion of furfural to give FAL and C8 monomer in a ratio of 3:1, respectively, the later altered to 1:1 by incorporating Al into MgO. Catalyst stability was established by its four cycles study. [GRAPHICS]</p>},
	keywords = {Aldol, furfural, Furfuryl alcohol, Metal oxides, transfer hydrogenation},
	issn = {1011-372X},
	doi = {10.1007/s10562-016-1786-6},
	author = {Biradar, Narayan S. and Hengne, Amol M. and Sakate, S. S. and Swami, R. K. and Rode, Chandrashekhar V.}
}
@article {47413,
	title = {Green synthesis of xanthene and acridine-based heterocycles of pharmaceutical importance: a review},
	journal = {Environmental Chemistry Letters},
	year = {2021},
	month = {MAR},
	type = {Review; Early Access},
	abstract = {<p>Xanthene and acridine-based heterocyclic compounds find applications in cancer chemotherapy, biological staining and laser dyes and are known for their antibacterial and anti-tumor properties. Here we review green catalytic routes for the synthesis of 1,8-dioxo-octahydroxanthenes, 1,8-dioxo-decahydroacridines and related heterocyclic molecules with catalysts such as metal oxides, mixed metal oxides, resins, supported organocatalysts, heteropolyacids, carbon-based materials, zeolites, sulfides and ionic liquids. We compare protocols for their catalytic activities, and proposed mechanisms are discussed.</p>},
	keywords = {green chemistry, heterocycles, heterogeneous catalysis, Metal oxides, nanocatalysis},
	issn = {1610-3653},
	doi = {10.1007/s10311-021-01223-w, Early Access Date = MAR 2021},
	author = {Burange, Anand S. and Gadam, Komal G. and Tugaonkar, Prajyot S. and Thakur, Seema D. and Soni, Ravish K. and Khan, Rubej R. and Tai, Mubashira S. and Gopinath, Chinnakonda S.}
}
@article {47731,
	title = {Selective production of C9 monomeric phenols via hydrogenolysis of lignin using Pd-(W/Zr/Mo oxides)-supported on biochar catalyst},
	journal = {Fuel},
	volume = {308},
	year = {2022},
	month = {JAN },
	pages = {121818},
	type = {Article},
	abstract = {Valorizing lignin to phenolic monomers and fine chemicals is an essential component of a sustainable biorefinery that uses lignocellulosic feedstocks. In this study, Pd-metal oxides (ZrO2, WOx, MoO3) supported on activated biochar (ABC) catalysts were developed for hydrogenolysis of lignin. The metals (2\% Pd, 5\% Zr, 5\% W, 5\% Mo) were supported on activated biochar using the wetness impregnation method, and the catalysts were extensively characterized. The effect of addition of secondary metals on active surface properties such as acidity, Pd metal particle size and dispersion were also evaluated. The selectivity to C9 monomeric phenols followed the trend: 2Pd-5Mo/ABC (57.3\%) > 2Pd-5Zr/ABC (49.2\%) > 2Pd-5W/ABC (45\%) > 2Pd/ABC (42.9\%). The maximum C9 phenolic monomer yield achieved in this study was similar to 22 wt\%. The fractional conversion of lignin was 67-69\% with Pd-metal oxide catalysts. The presence of Mo in the catalyst inhibited the hydrogenation of aliphatic C-alpha = C-beta in lignin and led to the formation of t-isoeugenol, while the presence of W and Zr resulted in selective formation of the hydrogenated product, propyl guaiacol. Using model compounds, it is proved that the formation of propyl guaiacol is via hydrogenation of t-isoeugenol, and not through dehydroxylation of propanol guaiacol. The dehydroxylation activity of the catalysts is attributed to the higher Lewis acidity and electropositive nature of the metals. A notable carbon atom economy of 47-50\% towards total phenolic monomers was achieved with 2Pd/ABC, 2Pd-5Mo/ABC and 2Pd-5Zr/ABC catalysts.},
	keywords = {Activated biochar, Guaiacol, Hydrogenolysis, lignin, Metal oxides, Palladium},
	issn = {0016-2361},
	doi = {10.1016/j.fuel.2021.121818},
	author = {Gurrala, Lakshmiprasad and Kumar, M. Midhun and Sharma, Shweta and Paek, Changyub and Vinu, R.}
}
