Results 191 to 200 of about 5,505,025 (397)

Comprehensive Characterization of the Molecular Structure and Properties of Pitch-like Products from Coal Dissolution at Mild Temperature Using Heavy Solvents of Coal and Petroleum Origin. [PDF]

Materials (Basel)
Kuznetsov P, Avid B, Kuznetsova L, Fan X, Xu JF, Kamenskiy E, Lyrschikov S.   +6 more
europepmc   +1 more source

The nature of products from the liquefaction of subbituminous coals in the presence of petroleum related residues

, 1983
S M Ahmed, S A Fouda, Parviz Rahimi, H Sawatzky   +3 more
openalex   +1 more source

Asymmetric Synthesis of Highly Substituted Spiro[2H‐pyrrole‐2,3‐Succinimide] Derivatives by Copper‐Catalyzed Post‐Ugi Reactions

Advanced Synthesis &Catalysis, EarlyView.
Abstract Herein we present a novel one‐pot methodology for the synthesis of enantioenriched 2H‐pyrrolespirosuccinimides by copper‐catalyzed reactions on Ugi adducts derived from enantiopure α‐alkylbenzyl amines through a chirality transfer process. We have proposed a mechanism, supported by density functional theory (DFT) calculations, where a hydrogen
Javier Gómez‐Ayuso, Israel Carreira‐Barral, Roberto Quesada, María García‐Valverde   +3 more
wiley   +1 more source

Petroleum and its products [PDF]

Journal of Chemical Education, 1950
openaire   +2 more sources

Book Review - Revolution in the World Petroleum Market; Strategic Implications; Oil Products: Spot Oil

, 1987
Richard L. Gordon
openalex   +2 more sources

Synthesis of spirolactones from carbonyls via carboborylation of N‐sulfonylhydrazones with alkoxycarbonylalkylboronic acids

Advanced Synthesis &Catalysis, Accepted Article.
A straightforward synthesis of spirolactones from carbonyls via N‐tosylhydrazones is described. The process consist in the reaction between the N‐tosylhydrazone and ethoxycarbonylethylboronic acid or ethoxycarbonylpropylboronic acid, leading to spiro γ‐butyrolactones or δ‐valerolactones respectively. The transformation takes place by carboborylation of
Lucía López, Sara Filgueira, María-Paz Cabal, Alfonso Carlos Valdés-Gómez   +3 more
wiley   +1 more source

Towards Greener Synthesis of Substituted 3-Aminophthalates Starting from 2<i>H</i>-Pyran-2-ones via Diels-Alder Reaction of Acetylenedicarboxylates. [PDF]

Molecules
Fendre D, Lukšič M, Kranjc K.
europepmc   +1 more source

Controlling groundwater pollution from petroleum products leaks [PDF]

, 2010
Mohammad Al-Suwaiyan
openalex   +1 more source

Pot‐Economical Synthesis of Fluorinated Pyrrolizinone Derivatives

Advanced Synthesis &Catalysis, EarlyView.
Abstract A new family of fluorinated dihydropyrrolizinones has been synthesized starting from fluorinated enamino amides and aliphatic conjugated ketones. The reaction comprises a cross metathesis reaction followed by a tandem cycloaromatization/ enamine hydrolysis/ intramolecular Friedel‐Crafts alkylation sequence.
Lidia Prieto, Marcos Escolano, Daniel Gaviña, Luis Paredes‐Soler, Santiago Díaz‐Oltra, María Sánchez‐Roselló, Carlos del Pozo   +6 more
wiley   +1 more source

Biological Monitoring of Fuel Stations Workers Occupationally Exposed to Petroleum Products [PDF]

, 2010
Khaled El-Said, Amr El-Noueam
openalex   +1 more source