120989-99-3Relevant articles and documents
Regio- and enantioselective allylic alkylation of an unsymmetrical substrate: A working model
Trost,Toste
, p. 4545 - 4554 (1999)
The evolution of a model for understanding asymmetric allylic alkylations catalyzed by palladium with the use of ligands derived from chiral diamines and 2-diphenylphosphinobenzoic acid provides a basis for attacking the problem of regio- and enantioselec
Ir(I)-catalyzed enantioselective decarboxylative allylic etherification: A general method for the asymmetric synthesis of aryl allyl ethers
Kim, Dongeun,Reddy, Srinivasa,Singh, Om V.,Lee, Jae Seung,Kong, Suk Bin,Han, Hyunsoo
, p. 512 - 515 (2013/04/10)
Ir(I)-catalyzed enantioselective decarboxylative allylic etherification of aryl allyl carbonates provides aryl allyl ethers. Key to the generality and high stereoselection of the reaction is the use of the intramolecular decarboxylative allylation process
Concise synthesis of licochalcone a through water-accelerated [3,3]-sigmatropic rearrangement of an aryl prenyl ether
Jeon, Jae-Ho,Kim, Mi Ran,Jun, Jong-Gab
experimental part, p. 370 - 376 (2011/04/22)
Claisen-Schmidt condensation of 4-(tetrahydropyran-2-yloxy)acetophenone with 2-methoxy-4-[(3-methylbut-2-en-1-yl)oxy]benzaldehyde gave a THP-protected chalcone ether. Removal of the THP group under mild acidic conditions gave the corresponding chalcone ether, which underwent a water-accelerated Claisen rearrangement under microwave irradiation or heating in a sealed tube in aqueous ethanol to give a good yield of licochalcone A, which has diverse biological activities; no product of deprenylation or abnormal Claisen rearrangement was formed. The abnormal Claisen rearrangement of -substituted allyl aryl ethers is known to be a problem in [3,3]-sigmatropic rearrangement reaction; this, however, was not detected in our water-accelerated system.
Synthesis and reactivity of complexes 2a-c, their involvement as catalyst precursors for regioselective allylic substitution reactions and related [Ru(Cp*)Cl(Ph2POMe)(RCHCHCH2)] [PF6] η3-allyl ruthenium(IV)inter
Demerseman, Bernard,Renaud, Jean-Luc,Toupet, Loic,Hubert, Claudie,Bruneau, Christian
, p. 1371 - 1380 (2007/10/03)
The synthesis of the new complexes [Ru(Cp*)(L)(MeCN) 2]-[PF6] (L = Ph2POMe or Ph2P-o- tolyl) and {Ru(Cp*)-[Ph2PCH2C(tBu)=O](MeCN)}[PF 6] (2a-c) is achieved starting from [Ru(Cp*)