@article { ISI:000255827100025, title = {Concise synthesis of protected (2S,4R)-4-hydroxyornithine}, journal = {Tetrahedron Letters}, volume = {49}, number = {20}, year = {2008}, month = {MAY}, pages = {3297-3299}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, type = {Article}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A short synthesis of the nonproteinogenic amino acid, (2S,4R)-4-hydroxyornithine is described. Starting from racemic benzyl glycidol, the scaffold of the target compound was constructed in high enantio- and diastereoselectivity using Jacobsen{\textquoteright}s hydrolytic kinetic resolution (HKR) and regioselective opening of an epoxide as key steps. (c) 2008 Elsevier Ltd. All rights reserved.

}, keywords = {Epoxide, Grignard reaction, hydroxyornithine, Jacobsen{\textquoteright}s HKR, Natural product}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2008.03.076}, author = {Pandey, Satyendra Kumar and Pandey, Menaka and Kumar, Pradeep} } @article { ISI:000265517700038, title = {Facile synthesis of 5,6-dihydro-5-hydroxy-2(1H)-pyridone}, journal = {Tetrahedron Letters}, volume = {50}, number = {20}, year = {2009}, month = {MAY}, pages = {2440-2442}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A short synthesis of 5,6-dihydro-5-hydroxy-2(1H)-pyridone was achieved from L-serine employing Horner-Emmons olefination as the key step. (C) 2009 Elsevier Ltd. All rights reserved.

}, keywords = {alkaloids, Horner-Emmons olefination, L-serine, Pyridone, Z-selectivity}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2009.03.026}, author = {Upadhyay, Puspesh K. and Prasad, Rajendra and Pandey, Menaka and Kumar, Pradeep} } @article { ISI:000285311000016, title = {Enantio- and diastereocontrolled total synthesis of (+)-strictifolione}, journal = {European Journal of Organic Chemistry}, number = {36}, year = {2010}, month = {DEC}, pages = {6993-7004}, publisher = {WILEY-BLACKWELL}, address = {COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA}, abstract = {

A concise and practical enantioselective synthesis of (+)-strictifolione has been achieved in high diastereomeric excess using Jacobsen{\textquoteright}s hydrolytic kinetic resolution, proline-catalyzed sequential alpha-aminoxylation and Horner-Wadsworth-Emmons olefination of aldehyde and cross olefin/ring-closing metathesis as the key steps.

}, keywords = {Asymmetric synthesis, Hydrolytic kinetic resolution, lactones, Natural products, organocatalysis, Ring-closing metathesis, Total synthesis}, issn = {1434-193X}, doi = {10.1002/ejoc.201001221}, author = {Kumar, Pradeep and Pandey, Menaka and Gupta, Priti and Naidu, S. Vasudeva and Dhavale, Dilip D.} } @article { ISI:000283834100025, title = {Organocatalytic route to the synthesis of lactone moiety of compactin and mevinolin}, journal = {Tetrahedron Letters}, volume = {51}, number = {44}, year = {2010}, month = {NOV}, pages = {5838-5839}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

An efficient synthesis of lactone moiety of compactin has been achieved. The stereogenic centers were generated by means of iterative proline-catalyzed sequential alpha-aminoxylation and Horner-Wadsworth-Emmons (HWE) olefination of aldehydes. (C) 2010 Elsevier Ltd. All rights reserved.

}, keywords = {Aminoxylation, Compactin, Lactone, organocatalysis, Proline}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2010.08.093}, author = {Kumar, Pradeep and Pandey, Menaka and Gupta, Priti and Dhavale, Dilip D.} } @article { ISI:000300047600017, title = {Organocatalytic stereoselective synthesis of passifloricin A}, journal = {Organic \& Biomolecular Chemistry}, volume = {10}, number = {9}, year = {2012}, month = {DEC}, pages = {1820-1825}, publisher = {ROYAL SOC CHEMISTRY}, type = {Article}, address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND}, abstract = {

The enantioselective synthesis of passifloricin A has been achieved in high diastereomeric excess. The 1,3-polyol moiety was constructed by iterative proline-catalyzed sequential alpha-aminoxylation and Horner-Wadsworth-Emmons (HWE) olefination of aldehydes while the synthesis of lactone moiety was achieved by ring-closing metathesis (RCM).

}, issn = {1477-0520}, doi = {10.1039/c2ob06711k}, author = {Kumar, Pradeep and Pandey, Menaka and Gupta, Priti and Dhavale, Dilip D.} } @article { ISI:000320275600007, title = {Desymmetrization approach to the enantiopure syn/anti-1,5-diols via hydrolytic kinetic resolution (hkr) of functionalized meso-bis-epoxides: further elaboration to syn/syn-1,3,5-triols and application to the formal synthesis of cryptocarya diacetate}, journal = {Advanced Synthesis \& Catalysis}, volume = {355}, number = {9}, year = {2013}, month = {JUN}, pages = {1719-1723}, publisher = {WILEY-V C H VERLAG GMBH}, address = {BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY}, abstract = {

A new approach has been developed for the synthesis of enantiopure syn/anti-1,5-diols by desymmetrization of functionalized meso-bis-epoxides using hydrolytic kinetic resolution (HKR). The usage of this protocol was demonstrated by converting syn-1,5-diols into syn/syn-1,3,5-triols and its subseqent application to the formal synthesis of cryptocarya diacetate.

}, keywords = {bis-epoxides, cryptocarya diacetate, desymmetrization, stereoselective reduction, synthetic methods}, issn = {1615-4150}, doi = {10.1002/adsc.201300098}, author = {Kumar, Pradeep and Chowdhury, Partha Sarathi and Pandey, Menaka} } @article { ISI:000323132100073, title = {Highly concise and practical route to clavaminols, sphinganine and (+)-spisulosine via indium mediated allylation of alpha-hydrazino aldehyde and a theoretical insight into the stereochemical aspects of the reaction}, journal = {RSC Advances}, volume = {3}, number = {35}, year = {2013}, month = {JUL}, pages = {15442-15448}, publisher = {ROYAL SOC CHEMISTRY}, address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND}, abstract = {

A conceptually different approach has been employed for the synthesis of 1,2-amino alcohols by proline-catalyzed alpha-amination of aldehyde and one-pot indium mediated allylation of the crude alpha-hydrazino aldehydes. DFT based quantum chemical calculations have been performed to obtain a quantitative explanation of the stereoselectivity of the reaction.

}, issn = {2046-2069}, doi = {10.1039/c3ra43048k}, author = {Pandey, Menaka and Chowdhury, Partha Sarathi and Dutta, Achintya Kumar and Kumar, Pradeep and Pal, Sourav} } @article {46186, title = {Retraction: organocatalytic stereoselective synthesis of passifloricin A (Retraction of Vol 10, Pg 1820, 2012)}, journal = {Organic \& Biomolecular Chemistry}, volume = {17}, year = {2019}, month = {FEB}, pages = {2289}, type = {Retraction}, issn = {1477-0520}, doi = {10.1039/c9ob90027f}, author = {Kumar, Pradeep and Pandey, Menaka and Gupta, Priti and Dhavale, Dilip D.} }