Results 91 to 100 of about 195,903 (365)
Allylic alcohols and amines by carbenoid eliminative cross-coupling using epoxides or aziridines
Beilstein Journal of Organic Chemistry, 2021 α-Lithiated terminal epoxides and N-(tert-butylsulfonyl)aziridines undergo eliminative cross-coupling with α-lithio ethers, to give convergent access to allylic alcohols and allylic amines, respectively.
Matthew J. Fleming, David M. Hodgson
doaj +1 more source
Synthesis of stereodefined 1-aryl(heteroaryl) substituted 1,2-bis(2-bromopyridin-3-yl)ethenes by selective tandem Suzuki-Miyaura Cross-coupling reactions [PDF]
, 2008 In this communication we show the preparation of stereodefined trisubstituted alkenes 2 can be achieved by sequential selective Suzuki-Miyaura reactions of 2-bromo-3-(2,2-dibromovinyl)pyridines.
Baldino, Salvatore +1 more
core +1 more source
Catalytic Asymmetric Addition of an Amine N-H Bond Across Internal Alkenes
Nature, 2020 Hydroamination of alkenes, the addition of the N–H bond of an amine across an alkene, is a fundamental, yet challenging, organic transformation that creates an alkylamine from two abundant chemical feedstocks, alkenes and amines, with full atom economy1 ...
Yumeng Xi, Senjie Ma, J. Hartwig
semanticscholar +1 more source
Advanced Healthcare Materials, EarlyView.Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen +7 more
wiley +1 more source
Visible-light photoredox catalysis enabled bromination of phenols and alkenes
Beilstein Journal of Organic Chemistry, 2014 A mild and efficient methodology for the bromination of phenols and alkenes has been developed utilizing visible light-induced photoredox catalysis. The bromine was generated in situ from the oxidation of Br− by Ru(bpy)33+, both of which resulted from ...
Yating Zhao +4 more
doaj +1 more source
High Ethylene and Propylene in an Area Dominated by Oil Production
Atmosphere, 2020 We measured the spatial distribution and composition of ozone-forming hydrocarbons, alcohols, and carbonyls in Utah’s Uinta Basin during the winter months of 2019 and 2020. The Uinta Basin contains about 10,000 producing oil and gas wells. Snow cover and
Seth N. Lyman +4 more
doaj +1 more source
Access to cyclopropanes with geminal trifluoromethyl and difluoromethylphosphonate groups
Beilstein Journal of Organic Chemistry, 2023 A synthetic route to the bench-stable fluorinated masked carbene reagent diethyl 2-diazo-1,1,3,3,3-pentafluoropropylphosphonate, bearing a trifluoromethyl and a difluoromethyl group is reported for the first time.
Ita Hajdin +5 more
doaj +1 more source
Emissions from village cookstoves in Haryana, India, and their potential impacts on air quality [PDF]
, 2018 Air quality in rural India is impacted by residential cooking and heating with biomass fuels. In this study, emissions of CO, CO2, and 76 volatile organic compounds (VOCs) and fine particulate matter (PM2.5) were quantified to better understand the ...
Arora, NK +9 more
core
Effect of zeolite topology and reactor configuration on the direct conversion of CO2 to light olefins and aromatics [PDF]
, 2019 The direct transformation of CO2 into high-value-added hydrocarbons (i.e., olefins and aromatics) has the potential to make a decisive impact in our society. However, despite the efforts of the scientific community, no direct synthetic route exists today
Abou-Hamad, Edy +11 more
core +1 more source
Advanced Materials, EarlyView.This work offers unique Ginger‐based 3D‐printable resins that can print customizable high‐resolution complex designs. The customizable printing backbone of Zingerol prints also mimics various human bones' strength. Acquisition of in‐vivo biocompatibility in rat model with no severe inflammatory response, along with in‐vitro antioxidant and ex‐vivo anti‐
Simran Jindal +9 more
wiley +1 more source