Results 171 to 180 of about 568,522 (376)

PTC in the Polyenolate‐Mediated [10+2]‐Cycloaddition for the Synthesis of α,α‐Disubstituted Amino Acid Precursors

Advanced Synthesis &Catalysis, EarlyView.
Abstract The manuscript describes a formal [10+2] higher‐order cycloaddition between 2‐arylideneindan‐1‐ones and α‐alkylidene azlactones as higherene precursors and higherenofiles respectively. The reaction is realized under Brønsted‐base catalysis utilizing the phase transfer catalysis approach.
Joanna Dybowska, Artur Przydacz, Anna Skrzyńska, Łukasz Albrecht   +3 more
wiley   +1 more source

Viscosity Measurements of Petroleum Products with the Brookfield-Type Rotational Viscometer

, 1965
Masuhiro Onoyama, Takeshi Sato
openalex   +2 more sources

Quantitative Applications of Fluorescence and Ultraviolet Scanning Densitometry for Compositional Analysis of Petroleum Products in Thin-Layer Chromatography [PDF]

, 1999
Vicente L. Cebolla, L. Membrado, María Pilar Domingo, P.N. Henrion, Rosa Garriga, Paula González, Fernando P. Cossío, Ana Arrieta, Jesús Vela   +8 more
openalex   +1 more source

Toxicity and Environmental Health Hazards of Petroleum Products in Wells Used for Drinking Water in the Intermountain West [PDF]

, 1989
Introduction: Groundwater is aprimary source of drinking water for about 50 percent of the population in the U.S. This source of drinking water has been generally regarded as safe from contamination.
Dupont, R. Ryan, Hsieh, Gin-Chang, Parker, Robert D.R., Sharma, Raghubir P.   +3 more
core   +1 more source

Hydrofluoroether Synthesis through One‐Pot Anodic Iodoalkoxylation of Alkenes

Advanced Synthesis &Catalysis, EarlyView.
Abstract The incorporation of carbon‐fluorine bonds can profoundly influence the chemical and physical properties of drugs, agrochemicals, and materials. Different methods allow the installation of CF3, CF2H units and C−F bonds including trifluoro‐ and difluoromethoxylations, reflecting the limited diversity of reactions available to synthetic chemists.
Martin Becerra‐Ruiz, Bethan Winterson, Edwin G. Pérez, Thomas Wirth   +3 more
wiley   +1 more source

Determination of Sulfur in Petroleum Products by Fast-neutron Activation and the Interfering Elements

, 1968
Mitsuhisa Tamura
openalex   +2 more sources

Marketing petroleum products

, 2018
Economy
openaire   +1 more source

Decision Support System for Design and Evaluation of Pipeline Projects [PDF]

Petronet India Limited (PIL) was created to give impetus to investments in pipeline projects for transportation of petroleum products in the country.
Barua, Samir K., Madhavan, T.
core  

Enzymatic Asymmetric Synthesis of All Stereoisomers of Aliphatic, Vicinal Diols in Conventional and Non‐Conventional Media

Advanced Synthesis &Catalysis, EarlyView.
Abstract Chiral, vicinal diols are of high interest for academic research and industrial applications. For synthesizing chiral diols, enzymes are important catalysts due to their high selectivity and ability to work under tolerable temperature and no pressure.
Maria Nicolas, Jan‐Dirk Küsters‐Spöring, Chiara Aufderheide, Helen Traving, Carina Ronja Kipp, Victoria S. Pfennig, Carsten Bolm, Petra Siegert, Dörte Rother   +8 more
wiley   +1 more source

A Review on Hydrogen Production Technologies and Its Future Demand [PDF]

arXiv
Hydrogen production is a vital process in the quest for decarbonization and a sustainable future. This conversation explores the various technologies used in hydrogen production, such as steam methane reforming, electrolysis, and biomass gasification.
arxiv