Results 21 to 30 of about 8,721 (248)

Unimolecular Reactions of Diethyl Malonate Cation in Gas-phase

open access: bronzeJournal of the Mass Spectrometry Society of Japan, 2004
Unimolecular reactions of diethyl malonate cation (CH3CH2OC(=O)CH2C(=O)OCH2CH3+· ; 1+·, Mw : 160) induced by electron ionization, have been investigated by use of mass-analyzed ion kinetic energy (MIKE) spectrometry and D-labeling in conjunction with thermochemistry.
Susumu Tajima   +3 more
openalex   +4 more sources

Diethyl 2-[(5-methoxy-2-methyl-1-phenylsulfonyl-1H-indol-3-yl)methylene]malonate [PDF]

open access: goldActa Crystallographica Section E, 2009
In the title compound, C24H25NO7S, the sulfonyl-bound phenyl ring is approximately perpendicular to the indole ring system [dihedral angle = 87.72 (5)°].
T. Kavitha   +4 more
doaj   +2 more sources

Diethyl 2-[(4-nitrophenyl)(4-phenyl-1,2,3-selenadiazol-5-yl)methyl]malonate [PDF]

open access: goldActa Crystallographica Section E, 2008
In the title compound, C22H21N3O6Se, the heterocyclic ring makes dihedral angles of 50.03 (11) and 67.75 (11)°, respectively, with the benzene and phenyl rings.
Nigam P. Rath   +4 more
doaj   +2 more sources

Diethyl 2-[(2-benzyl-1-phenylsulfonyl-1H-indol-3-yl)methylene]malonate [PDF]

open access: goldActa Crystallographica Section E, 2009
In the title compound, C29H27NO6S, the sulfonyl-bound phenyl ring is almost perpendicular to the indole ring system [dihedral angle = 87.96 (6)°], while the benzylphenyl ring is oriented at an angle of 76.8 (7)°. An intramolecular C&
T. Kavitha   +4 more
doaj   +2 more sources

Reaction of β-Nitrostyrene with Diethyl Malonate in the Presence of Bispidines: The Unusual Role of the Organocatalyst [PDF]

open access: goldChemistry
The aim of this work was the investigation of novel organocatalysts for the Michael addition of diethyl malonate to β-nitrostyrene. The methodology of the study included NMR titration, reaction monitoring by NMR spectroscopy and electrospray ionization ...
Alexander I. Dalinger   +4 more
doaj   +2 more sources

A Simple Method for the Alkylation of Diethyl Malonate

open access: bronzeJournal of Japan Oil Chemists' Society, 1974
Shota Itô   +3 more
openalex   +4 more sources

Reactivity of δ-Functionalized Para-Quinone Methides in Nucleophilic Addition Reactions. [PDF]

open access: yesChemistry
The reactivities of δ‐functionalized para‐quinone methides (pQMs) were characterized by kinetic studies of their reactions with carbanions in DMSO. Evaluating the second‐order rate constants (k2) by the Mayr‐Patz equation gave the electrophilicities E of pQMs.
Gross C, Eitzinger A, Mayer P, Ofial AR.
europepmc   +2 more sources

Crystal structure of diethyl 2-(2-methyl-5-nitrothiazol- 4-ylmethylene)malonate, C12H14N2O6S [PDF]

open access: goldZeitschrift für Kristallographie - New Crystal Structures, 2005
Crozet M. D.   +3 more
doaj   +2 more sources

A novel diethyl 2-(9-fluorenyl) malonate functionlized SBA-15 for selective optical sensing of Iron [PDF]

open access: yesJournal of Nanostructures, 2019
In this study, highly ordered mesoporous silica material (SBA-15) functionalized with Diethyl 2 - (9 -fluorenyl) malonate as a flourophore is reported.
Alireza Badiei   +2 more
doaj   +1 more source

Synthesis of novel β-aminocyclobutanecarboxylic acid derivatives by a solvent-free aza-Michael addition and subsequent ring closure [PDF]

open access: yes, 2011
Novel beta-aminocyclobutanecarboxylic acid derivatives were prepared via a sequential solvent-free aza-Michael addition of benzophenone imine across 3-halopropylidenemalonates and base-induced ring closure.
Aitken   +44 more
core   +1 more source

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