First stereoselective total synthesis of Goniothalesdiol A
摘要:
The first total synthesis of Goniothalesdiol A, isolated from the stems of Goniothalamus amuyon (Annonaceae) is reported. The C2 stereocentre and C3/C4 syn diol were created by a Sharpless kinetic resolution followed by acetonide formation. The tetrahydropyran ring was formed and the C6 stereocentre was fixed by intramolecular oxy-Michael addition. (C) 2009 Published by Elsevier Ltd.
A simple and efficient synthesis of goniothalesdiol A
摘要:
A concise, simple, and efficient stereoselective total synthesis of goniothalesdiol A starting from commercially available 2-deoxy-D-ribose is described herein using a stereocontrolled Grignard reaction, olefin cross-metathesis, and oxy-Michael addition reactions as the key steps. (C) 2012 Elsevier Ltd. All rights reserved.
Stereoselective Total Synthesis of Goniothalesdiol A via Chiron Approach
作者:Jhillu S. Yadav、Ragam Nageshwar Rao、Ragam Somaiah、Valaboju Harikrishna、Basi V. Subba Reddy
DOI:10.1002/hlca.200900342
日期:——
The stereocontrolled synthesis of goniothalesdiol A, a dihydroxylated tetrahydropyran compound, has been accomplished using D‐ribose as chiral precursor. The key steps involved are aryl Grignard reaction, stereoselective alkoxy‐directed keto reduction, and intramolecular oxy‐Michael addition.