- Benign Arylations of Dimethyl Itaconate via Heck–Matsuda Reaction Utilizing in-Situ Generated Palladium on Aluminum Oxide
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In situ generated palladium on aluminum oxide provides an active and efficient catalytic system for the preparation of arylmethylidene succinates using the Heck–Matsuda reaction. Beside the monoarylation the first examples of the biarylation of these mono
- Matelien?, Lauryna,Knaup, Jan,von Horsten, Frank,Gu, Xiaoting,Brunner, Heiko
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supporting information
p. 127 - 135
(2020/01/30)
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- Silver sequestration of halides for the activation of Pd(OAc)2 catalyzed Mizoroki-Heck reaction of 1,1 and 1,2 - Disubstituted alkenes
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A ligand free catalytic system consisting of Pd(OAc)2 (cat) and stoichiometric quantities of silver salts, AgOAc or AgBF4, exhibit high efficiency in the Mizoroki-Heck arylation, transforming aryl iodides and 1,1 as well as 1,2 disubstituted alkenes into 1,1,2 – trisubstituted aryl alkenes in excellent yields in very short reaction times.
- Bangar, Pronnoy G.,Jawalkar, Priyanka R.,Dumbre, Swapnil R.,Patil, Dharmaraj J.,Iyer, Suresh
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- Novel Base-Free Catalytic Wittig Reaction for the Synthesis of Highly Functionalized Alkenes
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A highly efficient catalyst system for base-free catalytic Wittig reactions has been developed and optimized. Initially, several potential (pre)catalysts as well as different silanes as reducing agents were screened. A system based on a readily available
- Schirmer, Marie-Luis,Adomeit, Sven,Spannenberg, Anke,Werner, Thomas
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supporting information
p. 2458 - 2465
(2016/02/12)
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- Tris(4-anisyl)phosphine as an efficient and practical reagent for the synthesis of (E)-2-benzylidenesuccinates
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Condensation of maleic anhydride or dimethyl maleate with benzylaldehydes controlled by tris(4-anisyl)-phosphine to synthesize dimethyl (E)-2-benzylidenesuccinates has been systematically investigated. The protocol gives the product with high stereoselectivity in moderate to good yields under mild conditions. A plausible mechanism has been proposed.
- Jiang, Huanfeng,Wang, Wei,Liu, Weibing,Qiao, Chunli
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experimental part
p. 263 - 268
(2010/10/21)
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- Unexpected reaction of dimethyl acetylenedicarboxylate with in situ generated arylketenes catalyzed by 1-methylimidazole
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(Chemical Equation Presented) An unexpected 1-methylimidazole-catalyzed reaction of dimethyl acetylenedicarboxylate (DMAD) with in situ generated arylketenes leading to the synthesis of dimethyl 2-arylidenesuccinates under mild conditions is described. A plausible mechanism has been proposed.
- Ding, Hanfeng,Ma, Cheng,Yang, Yewei,Wang, Yanguang
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p. 2125 - 2127
(2007/10/03)
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- Annelation Reactions of N-Heterocycles to Condensed Pyridones with Bridgehead Nitrogen
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The Horner-Wittig reaction of aromatic and heteroaromatic aldehydes with phosphono succinates gives the methylenesuccinates 2a-m and 4a-k in satisfactory yields.The compounds obtained have the E-configuration, as shown by 1H-NMR-spectroscopic and by chemi
- Linke, Siegfried,Kurz, Juergen,Lipinski, Dietmar,Gau, Wolfgang
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p. 542 - 556
(2007/10/02)
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