@article { ISI:000304851500004, title = {Concise synthesis of (+)-deoxoprosophylline via Co(III)(salen)-catalyzed two stereocentered HKR of racemic azido epoxides}, journal = {Tetrahedron Letters}, volume = {53}, number = {26}, year = {2012}, month = {JUN}, pages = {3213-3215}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

An efficient synthesis of (+)-deoxoprosophylline has been achieved in high optical purity (99\% ee) from readily available cis-2-butene-1,4-diol. The strategy employs Co-catalyzed Hydrolytic Kinetic Resolution (HKR) of two stereocentered racemic azido epoxides and diastereoselective intramolecular reductive cyclization as key reactions. (C) 2012 Elsevier Ltd. All rights reserved.

}, keywords = {Azido epoxide, Hydrolytic kinetic resolution, Piperidine, Wittig olefination}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2012.04.067}, author = {Devalankar, Dattatray A. and Sudalai, Arumugam} } @article { ISI:000350528300022, title = {Formal asymmetric synthesis of (2S,4R)-4-hydroxypipecolic acid via Co(III)(salen)-catalyzed two stereocentered HKR of racemic azido epoxide}, journal = {Tetrahedron Letters}, volume = {56}, number = {10}, year = {2015}, month = {MAR}, pages = {1263-1265}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

An efficient formal synthesis of (2S,4R)-4-hydroxypipecolic acid has been achieved in high optical purity (99\% ee) from readily available benzaldehyde. The strategy employs an iodine-induced intramolecular cyclization of a carbonate and Co-catalyzed Hydrolytic Kinetic Resolution (HKR) of two stereocentered racemic azido epoxide as the key reactions to construct chiral 1,3-amino alcohol functionality. (C) 2015 Elsevier Ltd. All rights reserved.

}, keywords = {Azido epoxide, Hydrolytic kinetic resolution, lodocyclization, Piperidine}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2015.01.113}, author = {Kamble, Rohit B. and Gadre, Shubhankar Haribhau and Suryavanshi, Gurunath M.} } @article {49124, title = {Enantioselective synthesis of (+)-Sedridine, (-)-Allosedridine and their N-Methyl analogs via Maruoka-Keck allylation and CBS reduction}, journal = {Natural Product Research }, volume = {37}, year = {2023}, month = {OCT}, pages = {3388-3394}, type = {Article}, abstract = {

A simple synthetic approach has been developed for the enantioselective total synthesis of (+)-Sedridine, (-)-Allosedridine and their analogs such as (+)-N- Methyl Sedridine and (-)-N-Methylallosedridine. The synthesis was achieved by using commercially available starting materials via Maruoka-Keck allylation, Wacker oxidation, and CBS reduction. The synthetic root provides a good diastereomeric ratio and high yields.

}, keywords = {CBS reduction, Maruoka-Keck allylation, Piperidine, Wacker oxidation}, issn = {1478-6419}, doi = {10.1080/14786419.2022.2076229}, author = {Bhoite, Shubhangi P. and Suryavanshi, Gurunath} }