The total synthesis of the {\it Cephalotaxus\/} alkaloids: d1-demethylcephalotaxinone, d1-cephalotaxinone, d1-cephalotaxine, d1-11-hydroxycephalotaxine, and d1-drupacine [PDF]
, 1988 An efficient total synthesis of dl-cephalotaxine is described. Key steps include: (1) conjugate-addition of an aryl lithium moiety to a vinyl sulfone moiety followed by alkylation of the resulting $\alpha$-sulfonyl anion with allyl bromide to afford an ...
Burkholder, Timothy Paul
core
Synthesis and Rearrangement of Epoxy Sugars [PDF]
, 1997 Ring-Contraction of sugar-derived epoxy alcohols, functionalised in position 1 and 6, by treatment with lithium bromide and N, N, N', N'-tetramethylurea in refluxing toluene gave enantiomerically pure a,b-unsaturated aldehydes of furanosides.
Pontén, Fritiof
core +2 more sources
Síntese de 3-selenil-indóis, 3-sulfenil-indóis e alcóxi-calcogenilação de estirenos por processos ambientalmente adequados [PDF]
, 2014 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-graduação em Química, Florianópolis, 2014No presente trabalho desenvolveram-se novas metodologias para a síntese de 3-selenil- e 3 ...
Azeredo, Juliano Braun de
core
, 1986 학위논문(박사) - 한국과학기술원 : 화학과, 1986.8, [ xii, 144 p. ]$\alpha$-Vinyl cyclic sulfones, 2-vinylthiolane-1,1-dioxide, 2-vinylthiane-1,1-dioxide, 2-vinylthiepane-1,1-dioxide, 3,3-diethoxy-2-vinylthietane-1,1-dioxide, 2-phenyl-5-vinylthiolane-1,1-dioxide, 2 ...
이명훈, Lee, Myong-Hoon
core
Regulation of Methacrylate Networks via Ester-Activated Vinyl Ethers as ChainTransfer Agents [PDF]
, 2019 Multifunctional methacrylates show high reactivity in radical polymerization but exhibit shrinkage stress during polymerization and tend to form highly cross-linked networks, which yield brittle materials.
Liska, Robert +6 more
core
Substrate scope of the asymmetric biaryl coupling reaction. Asymmetric synthesis of a perylenequinone. Progress toward the synthesis of cercosporin [PDF]
, 2006 The Kozlowski group has developed an asymmetric copper-catalyzed oxidative biaryl coupling reaction using a novel 1,5-diaza-cis-decalin ligand. This reaction gives good yields and enantioselectivities for a number of 3-substituted 2-naphthols to yield ...
Mulrooney, Carol A
core
Formació de sistemes heterocíclics. Part 1: Per obertura i posterior SNAr intramolecular de 2-(2'-fluoroaril)-2-(1-azolilmetil)oxirans. Part 2: Per metàtesi de diens i enins [PDF]
, 2002 Els compostos orgànics heterocíclics tenen una gran importància dins de la química gràcies a les seves propietats ja que molts d'ells presenten activitat biológica.
Santamaria Gámez, Antonio
core
Formació de sistemes heterocíclics : Part I: Per obertura i posterior SnAr intramolecular de 2-(2'-fluoroaril)-2-(1-azolilmetil)oxirans Part II: Per metàtesi dediens i enins [PDF]
, 2002 Els compostos orgànics heterocíclics tenen una gran importància dins de la química gràcies a les seves propietats ja que molts d'ells presenten activitat biológica.
Santamaria Gàmez, Antoni
core
HFIP-Induced Formation of <i>O</i>-Aryl Oxyallyl Cation and Nucleophilic Addition with Sodium Sulfinate Salt. [PDF]
J Org ChemAldás-Bedón J +6 more
europepmc +1 more source
One-Pot Morita-Baylis-Hillman/Allylic Substitution in Deep Eutectic Solvents: Access to γ-Hydroxy Derivatives via Sequential CC and CX (X = P, N, S, B, Si) Bond Formation. [PDF]
ChemSusChemRamos-Martín M +3 more
europepmc +1 more source