Rapid Access to<i>trans</i>-2,6-Disubstituted Piperidines: Expedient Total Syntheses of (-)-Solenopsin A and (+)-<i>epi</i>-Dihydropinidine
作者:Adrian P. Dobbs、Sebastien J. Guesné
DOI:10.1055/s-2005-871956
日期:——
Expedient syntheses of (-)-solenopsin A and (+)-epi-dihydropinidine are reported, the key step in both being the one-pot multicomponent aza-silyl-Prins condensation reaction to yield a trans dihydropyridine.
报告了 (-)-solenopsin A 和 (+)-epi-dihydropinidine 的便捷合成,二者的关键步骤都是一锅多组分氮-硅-Prins缩合反应,以生成反式二氢吡啶。
A Versatile Indium Trichloride Mediated Prins-Type Reaction to Unsaturated Heterocycles
作者:Adrian P. Dobbs、Sebastien J. J. Guesné、Saša Martinović、Simon J. Coles、Michael B. Hursthouse
DOI:10.1021/jo034981k
日期:2003.10.1
A versatile and high-yielding indium trichloride mediated cyclization reaction of silylated homoallylic alcohols, thiols, or amines with aldehydes or epoxides is described as a rapid route to a range of unsaturated heterocycles. The excellent diastereoselectivity observed offers a method of wide scope and generality.
The silyl–Prins reaction: a novel method for the synthesis of dihydropyrans
作者:Adrian P Dobbs、Saša Martinović
DOI:10.1016/s0040-4039(02)01558-7
日期:2002.9
Reaction of 4-trimethylsilyl-3-buten-1-ols with aldehydes under mild Lewis acid conditions gives substituted dihydropyrans in excellent yields and with good stereocontrol.
Double Prins Cyclisation Enabled Rapid Access to α,ω‐Hydroxytetrahydropyrans
作者:Jonathan Trevorrow、Anne O'Kearney‐McMullan、Lucie Miller Potucka、Adrian P. Dobbs
DOI:10.1002/ejoc.202200810
日期:2022.10.26
substructure of many natural products and is frequently prepared through the oxidative cyclisation of a pendant hydroxyl group on to a pre-formed pyran. However access to such precursors has hitherto been challenging. A novel method for the preparation of hydroxydi- and hydroxytetrahydropyrans is reported utilizing a novel double-Prins cyclisation approach.
On the choice of Lewis acids for the Prins reaction; two total syntheses of (±)-Civet
作者:Freda K. Chio、Julie Warne、Damien Gough、Mark Penny、Sasa Green (née Martinović)、Simon J. Coles、Mike B. Hursthouse、Peter Jones、Lorraine Hassall、Thomas M. McGuire、Adrian P. Dobbs
DOI:10.1016/j.tet.2011.05.019
日期:2011.7
While developing new variations of the Prins cyclisation reaction, the effect of the choice of Lewis acid on the outcome of the reaction and the product(s) has been investigated, yielding hitherto unseen dihydropyran products in the Prins cyclisation reaction of homoallylic alcohols, and two new modifications of the reaction: the triflate-trapped Prins adduct and the Mukaiyama-Aldol-silyl-Prins reaction. Two of these methods are employed in two complementary total syntheses of the important perfumery compound, (+/-)-Civet. (C) 2011 Elsevier Ltd. All rights reserved.