@article { ISI:000237651600007,
	title = {Palladium mediated cycloisomerization of sugar alkynols: synthesis of cyclic enol-ethers and spiroketals},
	journal = {Tetrahedron Letters},
	volume = {47},
	number = {22},
	year = {2006},
	month = {MAY},
	pages = {3649-3652},
	publisher = {PERGAMON-ELSEVIER SCIENCE LTD},
	type = {Article},
	address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND},
	abstract = {<p>Functionalized bicyclic enol-ethers and spiroketals are prepared by Pd catalyzed cycloisomerization of 3-C-alkynylfuranosyl derivatives. Cycloisomerization of differently substituted alkyne derivatives revealed a preference for 6-endo-dig cyclization over 5-exo-dig if the substituent is not sufficiently electron withdrawing. The scope of these cycloisomerizations has been further extended by integrating with conjugate addition. (c) 2006 Elsevier Ltd. All rights reserved.</p>},
	keywords = {c-alkynylfuranose, cycloisomerization, enol-ether, Palladium, Spiroketal},
	issn = {0040-4039},
	doi = {10.1016/j.tetlet.2006.03.143},
	author = {Ramana, C. V. and Mallik, Rosy and Gonnade, Rajesh G. and Gurjar, Mukund K.}
}
@article { ISI:000254901800024,
	title = {Influence of electronic factors on palladium-mediated cycloisomerization: a systematic investigation of competitive 5-exo-dig versus 6-endo-dig cyclizations of sugar alkynols},
	journal = {Tetrahedron},
	volume = {64},
	number = {1},
	year = {2008},
	month = {JAN},
	pages = {219-233},
	publisher = {PERGAMON-ELSEVIER SCIENCE LTD},
	type = {Article},
	address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND},
	abstract = {<p>Pd-mediated cycloisomerization of 3-C-alkynyl-allo- and ribofuranose derivatives was investigated in detail to understand the influence of electronic factors on the regioselectivity in ring closure reaction. The reactions in general are influenced by the electronic nature of the substituent on the alkyne unit. A preference for endo-dig cyclization over exo-dig is noted, if the alkynyl substituent is not sufficiently electron withdrawing, (c) 2007 Elsevier Ltd. All rights reserved.</p>},
	keywords = {C-alkynyl furanose, cycloisomerization, enol ether, Palladium, Spiroketal},
	issn = {0040-4020},
	doi = {10.1016/j.tet.2007.10.072},
	author = {Ramana, C. V. and Mallik, Rosy and Gonnade, Rajesh G.}
}
@article {47646,
	title = {Gold-catalyzed complementary nitroalkyne internal redox process: a DFT study},
	journal = {Frontiers in Chemistry},
	volume = {9},
	year = {2021},
	month = {JUL},
	pages = {689780},
	type = {Article},
	abstract = {Gold-catalysis, in this century, is one of the most emerging and promising new areas of research in organic synthesis. During the last two decades, a wide range of distinct synthetic methodologies have been unveiled employing homogeneous gold catalysis and aptly applied in the synthesis of numerous natural products and biologically active molecules. Among these, the reactions involving alpha-oxo gold carbene/alpha-imino gold carbene intermediates are of contemporary interest, in view of their synthetic potential and also due to the need to understand the bonding involved in these complexes. In this manuscript, we document the theoretical investigations on the regio-selectivity dependence of substitution on the gold-catalyzed cycloisomerization of o-nitroarylalkyne derivatives. We have also studied the relative stabilities of alpha-oxo gold carbene intermediates.},
	keywords = {alpha-Oxo Gold Carbene, cycloisomerization, DFT calculation, Gold-catalysis, internal redox},
	issn = {2296-2646},
	doi = {10.3389/fchem.2021.689780},
	author = {Vipin Raj, K. and Dhote, Pawan S. S. and Vanka, Kumar and Ramana, Chepuri V. V.}
}
