Kuldeep Singh

ksblogs@gmail.com


Journal articles

2011	DOI S Kotha, D Bansal, K Singh, S Banerjee (2011) Synthesis of a new fluorescent macrocyclic -amino acid derivative via tandem cross-enyne/ring-closing metathesis cascade catalyzed by ruthenium based catalysts. Journal of Organometallic Chemistry Abstract: Notes:
2010	DOI S Kotha, S Vittal, K Singh, K D Deodhar (2010) Strategic utilization of catalytic metathesis and photo-thermal metathesis in caged polycyclic frames Tetrahedron Letters 51: 2301-2304 Abstract: Notes:
2007	S Kotha, K Singh (2007) Cross-enyne and ring-closing metathesis cascade : A building-block approach suitable for diversity-oriented synthesis of densely functionalized macroheterocycles with amino acid scaffolds European Journal of Organic Chemistry 35. 5909-5916 Abstract: Suitably functionalized glycine derivatives undergo a cross-enyne and ring-closing metathesis cascade to generate macroheterocyclic ring systems in good yield. These macrocycles, prepared on the basis of a fragment coupling strategy, consist of 13-16-membered rings. To this end, 1,5-hexadiene was found to be a promising cross-coupling partner to generate macrocycles by this tandem metathesis sequence. Â© Wiley-VCH Verlag GmbH & Co. KGaA, 2007. Notes: Export Date: 23 July 2008
2004	DOI P K Thallapally, R K R Jetti, A K Katz, H L Carrell, K Singh, K Lahiri, S Kotha, R Boese, G R Desiraju (2004) Polymorphism of 1,3,5-trinitrobenzene induced by a trisindane additive Angewandte Chemie - International Edition 43: 9. 1149-1155 Abstract: The most stable is not necessarily the most easy to obtain! Two new stable crystal forms of the 120 year old compound sym-trinitrobenzene are reported. These elusive forms have been obtained by the use of an additive, trisindane, that can act as a mimic in the crystallization experiment (see scheme). Notes: Cited By (since 1996): 32
	S Kotha, K Singh (2004) N-Alkylation of diethyl acetamidomalonate : Synthesis of constrained amino acid derivatives by ring-closing metathesis Tetrahedron Letters 45: 52. 9607-9610 Abstract: An efficient method for N-alkylation of diethyl acetamidomalonate (DEAM) is reported. C-Alkenylation was achieved by treating the N-alkenylated DEAM with various electrophiles in the presence of Cs2CO3. RCM reactions of C- and N-alkenylated products gave cyclic amino acid derivatives in good yields. An efficient method for N-alkylation of diethyl acetamidomalonate (DEAM) is reported. C-Alkenylation was achieved by treating the N-alkenylated DEAM with various electrophiles in the presence of Cs2CO3. RCM reactions of C- and N-alkenylated products gave cyclic amino acid derivatives in good yields. Â© 2004 Published by Elsevier Ltd. Notes: Cited By (since 1996): 7

Journal articles