Scheme for the synthesis of turkesterone 11α-acyl derivatives: i) phenylboronic acid, dry DMF, r

<p><b>Copyright information:</b></p><p>Taken from "Synthesis and biological activities of turkesterone 11α-acyl derivatives"</p><p>Journal of Insect Science 2003;3():-.</p><p>Published online 24 Feb 2003</p><p>PMCID:PMC524646.</p><p>Copyright © 2003. Open access; copyright is maintained by the authors.</p>t. 2 h, ii) addition of dry DMP, dry acetone and fused -TsOH, r.t. 3h, iii) R-COOCO-R, dry pyridine (or pyridine/benzene 6:5 v/v), r.t. (or 50°C) for 2–20 h and iv) 0.1M HCl/dioxan (1:1 v/v), r.t. 4 h