Results 21 to 30 of about 18,824 (297)

Chemo- and Site-Selective Replacement of NTerminal Carbamates in Peptides

, 2022
In peptide synthesis, it is important to distinguish the terminal amino group and carry out the selective transformation of only the N-terminal protecting group.
Daisuke Sawada (158065), Takumi Abe, Miho Ibara (12238960), Takumi Abe (776526), Miho Ibara, Daisuke Sawada   +5 more
core   +1 more source

An Overview of Pesticide Monitoring at Environmental Samples Using Carbon Nanotubes-Based Electrochemical Sensors

C, 2017
Carbon nanotubes have received enormous attention in the development of electrochemical sensors by promoting electron transfer reactions, decreasing the work overpotential within great surface areas.
Ademar Wong, Tiago A. Silva, Fábio R. Caetano, Márcio F. Bergamini, Luiz H. Marcolino-Junior, Orlando Fatibello-Filho, Bruno C. Janegitz   +6 more
doaj   +1 more source

A Two-Step Procedure for the Overall Transamidation of 8‑Aminoquinoline Amides Proceeding via the Intermediate N‑Acyl-Boc-Carbamates

, 2018
Herein a two-step strategy for achieving overall transamidation of 8-aminoquinoline amides has been explored. In this protocol, the 8-aminoquinoline amides were first treated with Boc2O and DMAP to form the corresponding N-acyl-Boc-carbamates, which were
Monireh Pourghasemi Lati (5052233), Michael Oschmann (5052236), Oscar Verho (1814533)   +2 more
core   +1 more source

Hydrogenation of Carbamates, Ureas, and Polyurethanes Using Heterogeneous Catalysts. [PDF]

ACS Sustain Chem Eng
Funding: This research is funded by a UKRI Future Leaders Fellowship (MR/W007460/1) and the EaSI-CAT centre for Doctoral Training (JSK)..We report here the hydrogenation of carbamates, ureas, and polyurethanes using heterogeneous catalysts.
Sole B, Kolb JS, Marcial-Hernandez R, Luk J, Williams T, Magdysyuk OV, Sheppard D, Walker G, Kumar A.   +8 more
europepmc   +2 more sources

Do carbamates cause polyneuropathy?

, 2006
Carbamates are reversible inhibitors of acetylcholinesterase, and some also inhibit neuropathy target esterase (NTE), the target in organophosphate-induced delayed polyneuropathy.
M. Lotti, A. Moretto, LOTTI, MARCELLO, MORETTO A.   +3 more
core   +1 more source

Asymmetric Iron‐Catalyzed Vicinal C(sp3)─H Diamination of Carboxylic Acids

Angewandte Chemie, EarlyView.
An iron‐catalyzed vicinal α,β‐C(sp3)─H diamination of readily available carboxylic acids furnishes chiral α,β‐diamino acids in a single pot with high regio‐, diastereo‐, and enantioselectivity (up to >20:1 dr and >99% ee). ABSTRACT The direct construction of chiral 1,2‐diamines through the stereoselective functionalization of two vicinal C(sp3)─H bonds
Bing Zhou, Yuan Zheng, Xiulan Xie, Marcel Hemming, Sergei I. Ivlev, Eric Meggers   +5 more
wiley   +2 more sources

Sensibilidad de Anopheles darlingi Root 1840 a insecticidas, en dos localidades de los departamentos de Santander y Caquetá, Colombia

Biomédica: revista del Instituto Nacional de Salud, 2012
Introducción. La sensibilidad fisiológica a los insecticidas usados en salud pública es el principal factor que se debe tener en cuenta en la selección de las estrategias de control en los vectores de malaria. Objetivo.
Liliana Santacoloma, Tania Tibaduiza, Marcela Gutiérrrez, Helena Brochero   +3 more
doaj   +1 more source

Anti-Proliferative and Cytoprotective Activity of Aryl Carbamate and Aryl Urea Derivatives with Alkyl Groups and Chlorine as Substituents

Molecules, 2022
Natural cytokinines are a promising group of cytoprotective and anti-tumor agents. In this research, we synthesized a set of aryl carbamate, pyridyl urea, and aryl urea cytokinine analogs with alkyl and chlorine substitutions and tested their ...
Maxim Oshchepkov, Leonid Kovalenko, Antonida Kalistratova, Maria Ivanova, Galina Sherstyanykh, Polina Dudina, Alexey Antonov, Anastasia Cherkasova, Mikhail Akimov   +8 more
doaj   +1 more source

Direct conversion of azides and benzyl carbamates to t-butyl carbamates using polymethylhydrosiloxane and Pd-C

, 2000
One step direct conversion of azides and benzyl carbamates to t-butyl carbamates is achieved using inexpensive and safe hydride source namely polymethylhydrosiloxane (PMHS) under Pd-C ...
Raji Reddy, Ch., Chandrasekhar, S., Chandraiah, L., Venkat Reddy, M.   +3 more
core   +1 more source

Porous Organic Cages for CO2 Capture and Confined Reduction

Angewandte Chemie, EarlyView.
Porous organic cages (POCs) enable the coupling of CO2 capture and conversion through the interplay of molecular structure and solid‐state organization. Beyond intrinsic cavities, packing‐dependent pore accessibility and mass transport govern local CO2 concentration and catalytic performance, linking adsorption to reactivity in integrated capture ...
Valeria Amendola, Sonia La Cognata
wiley   +2 more sources