Results 201 to 210 of about 5,505,025 (397)

Dual Photoredox/Cu‐Catalysis Enables Diastereoselective Synthesis of 3‐β‐Ethynyltropanes via Decarboxylative Alkynylation

Advanced Synthesis &Catalysis, EarlyView.
A copper‐catalyzed decarboxylative alkynylation of tropanes is developed. This approach works under mild conditions and selectively produces a range of 3‐β‐alkynylated tropanes. Moreover, it provides a versatile and convergent platform for further functionalization of the triple bond.
Mayssa Zayene, Franck Le Bideau, Pascal Retailleau, Hichem Ben Jannet, Vincent Gandon, Anis Romdhane, Samir Messaoudi   +6 more
wiley   +1 more source

AVO reflectivity and pre-stack seismic impedance inversion for gas sand channel detection at South Abu El Naga Field, Onshore Nile Delta, Egypt. [PDF]

Sci Rep
Al-Ashqar NA, El-Werr AK, Helaly AS, Kamel A.   +3 more
europepmc   +1 more source

Effects of petroleum products on the survival of beneficial pseudomonas species.

, 2001
E. C. Wokoma
openalex   +2 more sources

Synthesis of Polysubstituted Naphthalenes via Metal‐Free Borylative Cyclization of o‐Alkynylstyrenes

Advanced Synthesis &Catalysis, EarlyView.
Abstract A selective, metal‐free method for the synthesis of boron‐functionalized polysubstituted naphthalenes via BCl3‐mediated cyclization of α‐substituted o‐alkynylstyrenes is described. The reaction exhibits broad substrate scope, tolerating various groups such as ethers, sulfides and halogens, and delivers high yields under mild conditions, even ...
Marcos Humanes, Manuel A. Fernández‐Rodríguez, Patricia García‐García   +2 more
wiley   +1 more source

Pd-Catalyzed Direct Diarylation of Sodium Hypophosphite Enables the Synthesis of Diarylphosphonates. [PDF]

Molecules
Yang J, Qian D, Wang G, Yang S.
europepmc   +1 more source

Taxation and Pricing of Petroleum Products in Developing Countries: A Framework for Analysis with Application to Nigeria

, 2003
Shahabuddin Hossain
openalex   +2 more sources

Haematologic and biochemical implications of inhalation of fumes of petroleum products [PDF]

, 2014
JC Isirima, BE Angalabiri-Owei
openalex   +1 more source

Development of Photo‐Biocatalytic Redox System for Asymmetric Synthesis of Optically Active Amines Using Blue Light and Transaminases. A Case Study Toward Mavacamten

Advanced Synthesis &Catalysis, EarlyView.
Abstract α‐Chiral amines are versatile building blocks for the asymmetric synthesis of optically pure high‐added‐value chemicals, including pharmaceuticals, agrochemicals, and natural products. Herein, we report a one‐pot, two‐step sequential deracemization of racemic sec‐alcohols to optically enriched primary amines throught a photo‐biocatalytic ...
Natalia Antos, Aleksandra Rudzka, Anna Hoser, Tamara Reiter, Wolfgang Kroutil, Paweł Borowiecki   +5 more
wiley   +1 more source

Integration of Coke and CNMs with Bitumen: Synthesis, Methods, and Characterization. [PDF]

Nanomaterials (Basel)
Hashami M, Ongarbayev Y, Tileuberdi Y, Imanbayev Y, Zhambolova A, Kenzhegaliyeva A, Mansurov Z.   +6 more
europepmc   +1 more source

Development of Hydrofluoroolefin (HFO)‐Based Direct O‐Fluoroalkenylation of Phenols Targeting Tyrosine Conjugation

Advanced Synthesis &Catalysis, EarlyView.
Abstract Methodology for direct fluoroalkenylation of phenolic OH function was developed using a fluorinated electrophilic reagent derived from HFO1234ze gas. Besides various functionalized phenols, tyrosine and tyrosine‐based peptides were successfully conjugated under the optimized reaction conditions.
Rihárd Sisa, Ferenc Béke, Zoltán Novák   +2 more
wiley   +1 more source