Asymmetric transformations from sulfoxonium ylides

CAD Caiuby, LG Furniel, ACB Burtoloso - Chemical Science, 2022 - pubs.rsc.org
Sulfoxonium ylides are important surrogates for diazo compounds, and their use in industry
as safer alternatives has been evaluated during recent years. Beyond the known classical …

Magnetically separable nano-copper catalyzed unprecedented stereoselective synthesis of E-vinyl sulfones from tosylmethyl isocyanide and alkynes: TosMIC as a …

M Phanindrudu, DK Tiwari, B Sridhar… - Organic Chemistry …, 2016 - pubs.rsc.org
We have developed an unprecedented efficient and mild catalytic route for stereoselective
synthesis of E-vinyl sulfones from terminal alkynes and tosylmethyl isocyanide (TosMIC) in …

Magnetically recoverable Cu 0/Fe 3 O 4 catalyzed highly regioselective synthesis of 2, 3, 4-trisubstituted pyrroles from unactivated terminal alkynes and isocyanides

DK Tiwari, M Phanindrudu, VK Aravilli… - Chemical …, 2016 - pubs.rsc.org
An efficient, one pot tandem nano Cu0/Fe3O4 catalyzed highly regioselective synthesis of 3-
substituted pyrrole-2, 4 dicarboxylates from unactivated terminal alkynes and isocyanides …

[HTML][HTML] Novel stereocontrolled syntheses of tashiromine and epitashiromine

L Kiss, E Forró, F Fülöp - Beilstein Journal of Organic …, 2015 - beilstein-journals.org
A novel stereocontrolled approach has been developed for the syntheses of tashiromine
and epitashiromine alkaloids from cyclooctene β-amino acids. The synthetic concept is …

Cyclopropenones in the synthesis of indolizidine, pyrrolo [2, 1-a] isoquinoline and indolizino [8, 7-b] indole alkaloids

F Jamshaid, VVR Kondakal, CD Newman, R Dobson… - Tetrahedron, 2020 - Elsevier
An attempted synthesis of the indolizidine natural product castanospermine resulted in the
successful addition of cyclopropenone to a sugar-derived poly-hydroxylated cyclic imine to …

A general and practical route to 4, 5-disubstituted oxazoles using acid chlorides and isocyanides

DK Tiwari, J Pogula, DK Tiwari - RSC Advances, 2015 - pubs.rsc.org
An efficient and mild method for the synthesis of 4, 5-disubstituted oxazoles has been
developed. A series of 4, 5-disubstituted oxazoles were prepared via [3+ 2] cycloaddition …

Double Morita–Baylis–Hillman (MBH) strategy; an intermolecular and a chemo selective intramolecular MBH reactions for 5/6 substituted, functionalized piperidine …

KC Bharadwaj, DK Tiwari - Tetrahedron, 2016 - Elsevier
A novel approach utilizing dual Morita–Baylis–Hillman (MBH) reactions in form of
intermolecular and a chemo selective intramolecular version, has been developed. With …

One-pot reactions of three-membered rings giving N, O, S-heterocycles

VA Palchykov, O Zhurakovskyi - Advances in Heterocyclic Chemistry, 2021 - Elsevier
Three-membered heterocycles, such as epoxides and aziridines, are “spring-loaded” for ring
opening and thus undergo facile conversion into open-chain and cyclic derivatives. This …

Synthesis of N, O, S-heterocycles by one-pot reactions of epoxides, aziridines and oxaziridines

O Zhurakovskyi, V Palchykov - Advances in Organic Synthesis …, 2018 - benthamdirect.com
Discovery of new effective methods for the synthesis of aziridines, epoxides and
oxaziridines, as well as development of novel transformations of these heterocycles, has …

Synthesis of 1‐Deoxy‐8, 8a–di–epi–castanospermine, 1‐Deoxy‐6, 7, 8a–tri–epi–castanospermine and Formal Synthesis of Pumilotoxin 251D

S Chacko, R Ramapanicker - ChemistrySelect, 2016 - Wiley Online Library
An efficient synthesis of 1‐deoxy‐8, 8a‐di‐epi‐castanospermine and 1‐deoxy‐6, 7, 8a‐tri‐
epi‐castanospermine through the use of proline‐catalyzed asymmetric α‐aminoxylation of …