Total synthesis of (±) mutisianthol and (±) epi-mutisianthol via intramolecular oxidative Heck cyclization approach
作者:Shashikant B. Bhorkade、Kishor B. Gavhane、Vaishali S. Shinde
DOI:10.1016/j.tet.2016.02.057
日期:2016.4
A simple and straight forward synthesis of (±) mutisianthol and its epimer is described. Implementation of 4-pentenal derivative for palladium catalyzed intramolecular 5-endo-trig Heck cyclization is effective. Other key steps involved are Wittig olefination with allyloxymethylenetriphenylphosphorane, [3,3] sigmatropic rearrangement and chemoselective reduction of double bond.
A novel and efficient total synthesis of (±)-physostigmine
作者:Mukund G. Kulkarni、Attrimuni P. Dhondge、Ajit S. Borhade、Dnyaneshwar D. Gaikwad、Sanjay W. Chavhan、Yunnus B. Shaikh、Vijay B. Ningdale、Mayur P. Desai、Deekshaputra R. Birhade、Mahadev P. Shinde
DOI:10.1016/j.tetlet.2009.03.012
日期:2009.5
Application of the Wittig olefination–Claisen rearrangement protocol for the totalsynthesis of (±)-physostigmine.
Stereodivergent approach to Alzheimer's therapeutic agent ( R )-(−) and ( S )-(+)-arundic acid employing chiral 4-pentenol derivatives as building blocks
作者:Viraj A. Bhosale、Suresh B. Waghmode
DOI:10.1016/j.tet.2017.03.002
日期:2017.4
An efficient stereodivergent total synthesis of anti-Alzheimeragent (R)-(−) and (S)-(+)-arundic acid has been achieved from both chiral and nonchiral materials. This strategy features an efficient approach to separable diastereomeric C-2 chiral 4-pentenol intermediates employing proline catalysed asymmetric α-aminooxylation and [3,3] sigmatropic Claisen rearrangement are the highlights of present
A stereodivergent approach to carbahexofuranoses: synthesis of carba-α-d-glucofuranose, carba-β-d-altrofuranose, carba-α-d-allofuranose, carba-β-d-idofuranose, carba-α-d-galactofuranose and carba-β-d-talofuranose
作者:Mukund G. Kulkarni、Ajit S. Borhade、Yunnus B. Shaikh、Attrimuni P. Dhondge、Deekshaputra R. Birhade、Nagorao R. Dhatrak
DOI:10.1016/j.tetlet.2011.08.006
日期:2011.10
A stereodivergent route, starting from d-glyceraldehyde derivative, employing Wittig olefination–Claisen rearrangement protocol is reported for the synthesis of six novel carbahexofuranoses—carba-α-d-glucofuranose, carba-β-d-altrofuranose, carba-α-d-allofuranose, carba-β-d-idofuranose, carba-α-d-galactofuranose and carba-β-d-talofuranose in enantiomerically pure form.
作者:Mukund G. Kulkarni、Attrimuni P. Dhondge、Ajit S. Borhade、Dnyaneshwar D. Gaikwad、Sanjay W. Chavhan、Yunnus B. Shaikh、Vijay B. Nigdale、Mayur P. Desai、Deekshaputra R. Birhade、Mahadev P. Shinde