反应 d'oxepannethone-2 avec des 烷基锂 puis avec l'iodomethane; 获得 d'烷基-2 甲硫基-2 oxepannes(le groupemethylthio est ensuite elimine par Ph 3 SnH-AIBN)。应用辅助硫代内酯 suvantes: oxocannethone-2, oxonannethone-2, oxacycloheptadecannethion-2 et perhydro pyranno [3,2-b] oxocinne- et -oxoninnethone
Synthesis of medium-sized ring ethers from thionolactones. Applications to polyether synthesis
作者:K. C. Nicolaou、D. G. McGarry、P. K. Somers、B. H. Kim、W. W. Ogilvie、G. Yiannikouros、C. V. C. Prasad、C. A. Veale、R. R. Hark
DOI:10.1021/ja00173a013
日期:1990.8
Reductive desulfurization using triphenyltin hydride under radical conditions afforded the corresponding cyclicethers rapidly and efficiently and, in most cases, with complete stereocontrol. This methodology has been proven through the construction of model systems of rings B and D of brevetoxin A (1) and a synthesis of (±)-lauthisan
已经制备了多种中等大小的硫代内酯,并与亲核试剂缩合,在用甲基碘淬灭后得到烷基化硫代缩醛。在自由基条件下使用三苯基氢化锡进行还原脱硫可以快速有效地提供相应的环醚,并且在大多数情况下具有完全立体控制。该方法已通过构建短杆菌毒素 A (1) 的 B 环和 D 环模型系统以及 (±)-lauthisan 的合成得到证明
Synthesis of medium ring ethers. Part 2. Synthesis of the fully saturated carbon skeleton of Laurencia non-terpenoid ether metabolites containing seven-, eight- and nine-membered rings
作者:Robert W. Carling、J. Stephen Clark、Andrew B. Holmes
DOI:10.1039/p19920000083
日期:——
A general method for the construction of medium ring ethers is described in which a 2-substituted cycloalkanone was subjected to a Baeyer–Villiger ring expansion to the lactone, Tebbe methylenation of which afforded the enol ether which was subjected to a hydroboration–oxidation sequence to afford the 2,n-disubstituted oxacycle (n= ring size). Application of this procedure has led to efficient syntheses
NICOLAOU, K. C.;MCGARRY, D. G.;SOMERS, P. K.;KIM, B. H.;OGILVIE, W. W.;YI+, J. AMER. CHEM. SOC., 112,(1990) N7, C. 6263-6276
作者:NICOLAOU, K. C.、MCGARRY, D. G.、SOMERS, P. K.、KIM, B. H.、OGILVIE, W. W.、YI+
DOI:——
日期:——
COMPOSITION AND POLYMER
申请人:Asahi Kasei Kabushiki Kaisha
公开号:EP2735581B1
公开(公告)日:2021-07-14
Composition and Polymer
申请人:Nakamura Akitake
公开号:US20140121293A1
公开(公告)日:2014-05-01
Disclosed is a composition comprising (A) at least one compound selected from the group consisting of an ether compound having two or more ether groups, a trivalent phosphorus compound, and a ketone compound, (B) a boron trihalide, and (C) an episulfide compound.