Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Steve Tisserand"'
Publikováno v:
European Journal of Organic Chemistry. 2010:1869-1874
Nucleophilic mixed chromium(II) and chromium(III) acetylides are generated from the smooth reduction of primary 1,1,1-trichloroalkanes with chromium(II) chloride in the presence of an excess amount of triethylamine at room temperature. These species
Publikováno v:
Tetrahedron Letters. 48:3855-3858
Using CrCl 2 in THF at room temperature, trichloromethyl carbinols and trichloromethylalkanes are readily transformed to the highly reactive α-chlorocarbenes, carbynes and α-chloro-α-chromium(III) vinylidene carbenoids. A mechanistic study is carr
Publikováno v:
Tetrahedron Letters. 47:5177-5180
CrCl2-mediated condensation of γ-chloro-gem-trichloroalkanes with aldehyde generates homoallylic alcohols through a hydride rearrangement followed by a Nozaki–Hiyama allylation.
Publikováno v:
Tetrahedron Letters. 48:7117-7119
An efficient total synthesis of rhein and diacerhein has been accomplished by relying on a remarkable regioselective directed ortho metalation (DOM) followed by a one-pot two step addition-cyclization reaction, generating phthalide 5 intermediate eff
Publikováno v:
Organic Letters. 7:2555-2557
[reaction: see text] Baylis-Hillman adducts were found to be excellent dienophiles in Diels-Alder reactions, providing essentially complete diastereocontrol (although mixtures of endo/exo isomers) with all dienes.
Publikováno v:
ChemInform. 41
Nucleophilic mixed chromium(II) and chromium(III) acetylides are generated from the smooth reduction of primary 1,1,1-trichloroalkanes with chromium(II) chloride in the presence of an excess amount of triethylamine at room temperature. These species
Autor:
Lik Ren Tai, Eddie L. Myers, Anders Palmelund, Varinder K. Aggarwal, Steve Tisserand, Craig P. Butts
Publikováno v:
ChemInform. 39
Dienes have been formed with good stereoselectivity and in good yield from simple aldehydes and acrylates/acrylonitrile in the presence of a phosphine and a Lewis acid through a modification of the Morita reaction.
Autor:
Lik Ren Tai, Varinder K. Aggarwal, Anders Palmelund, Steve Tisserand, Eddie L. Myers, Craig P. Butts
Publikováno v:
Chemical communications (Cambridge, England). (40)
Dienes have been formed with good stereoselectivity and in good yield from simple aldehydes and acrylates/acrylonitrile in the presence of a phosphine and a Lewis acid through a modification of the Morita reaction.
Publikováno v:
ChemInform. 36
Publikováno v:
The Journal of Organic Chemistry. 69:8982-8983
Short and practical total syntheses of rhein (1) and diacerhein (2) have been achieved via a Fries rearrangement and bis-carbonylation strategy followed by cyclization in molten salt, starting from dibromoester 7.