Une methode simple et generale d'acylation: Application a la synthese de cetones terpeniques
作者:René Couffignal、Jean-Louis Moreau
DOI:10.1016/s0040-4039(01)95038-5
日期:1978.1
Dupont; Labaune, Chemisches Zentralblatt, 1911, vol. 82, # II, p. 138
作者:Dupont、Labaune
DOI:——
日期:——
Intermolecular Heck Coupling with Hindered Alkenes Directed by Potassium Carboxylates
作者:Tucker R. Huffman、Yebin Wu、Alexis Emmerich、Ryan A. Shenvi
DOI:10.1002/anie.201813233
日期:2019.2.18
Pd0 -catalyzed Mizoroki-Heck reactions traditionally exhibit poor reactivity with polysubstituted, unbiased alkenes. Intermolecular reactions with simple, all-carbon tetrasubstituted alkenes are unprecedented. Herein we report that pendant carboxylic acids, combined with bulky monophospine ligands on palladium, can direct the arylation of tri- and tetrasubstituted olefins. Quaternary carbons are established
The orthoester Johnson–Claisen rearrangement of allylic terpenols in the presence of acidic ionic liquid
作者:Galina V. Kryshtal、Galina M. Zhdankina、Nikolai V. Ignat’ev、Michael Schulte、Sergei G. Zlotin
DOI:10.1016/j.jfluchem.2016.01.005
日期:2016.3
A convenient protocol for the synthesis of natural isoprenoid-derived carboxylic esters via reaction of allylic terpenols with triethyl orthoacetate (propionate) in the presence of 1-butyl-3-methylimidazolium hexafluorophosphate, [bmim][PF6] (10 mol%), has been developed. The desired terpene derivatives were prepared in moderate to high yield. The ionic liquid (IL) can be easily separated from the