Results 71 to 80 of about 2,520,258 (203)

Enantio‐ and Regioselective Cascade Hydroboration of Methylenecyclopropanes for Facile Access to Chiral 1,3‐ and 1,4‐Bis(boronates)

Advanced Science
Chiral 1, n‐bis(boronate) plays a crucial role in organic synthesis and medicinal chemistry. However, their catalytic and asymmetric synthesis has long posed a challenge in terms of operability and accessibility from readily available substrates.
Jian Zhou, Ling Meng, Ziyi Yang, Jun (Joelle) Wang   +3 more
doaj   +1 more source

A Novel Strategy for Biomass Upgrade: Cascade Approach to the Synthesis of Useful Compounds via C-C Bond Formation Using Biomass-Derived Sugars as Carbon Nucleophiles

Molecules, 2016
Due to the depletion of fossil fuels, biomass-derived sugars have attracted increasing attention in recent years as an alternative carbon source. Although significant advances have been reported in the development of catalysts for the conversion of ...
Sho Yamaguchi, Toshihide Baba
doaj   +1 more source

Cascade Locks Notice of Adopted Amendment (2011-01-24)

, 2011
8 pp. Adopted 2011-01-24. Department of Land Conservation and Development Notice of Adopted AmendmentThe Council approved redesignation of a Comprehensive Plan land use map from Open Space to Residential and the rezoning of property from OS (Open Space ...
Cascade Locks (Or.)
core  

Enzyme cascade reactions

, 2015
A one-pot tandem enzyme reaction using galactose oxidase M3–5 and aldehyde oxidase PaoABC was used to convert hydroxymethylfurfural (HMF) to the pure bioplastics precursor FDCA in 74% isolated yield. A range of alcohols was also converted to carboxylic acids in high yield under mild conditions.
McKenna, Shane M., Leimkühler, Silke (Prof. Dr.), Herter, Susanne, Turner, Nicholas J., Carnell, Andrew J.   +4 more
openaire   +1 more source

8-Phenyl-13a-(trifluoromethyl)-13aH-benzo[4,5]imidazo[1,2-a]chromeno[3,2-e]pyridine-6-carbonitrile

Molbank
A DABCO-catalyzed one-pot synthesis of a novel pentacyclic heterocycle featuring an unprecedented benzo[4,5]imidazo[1,2-a]chromeno[3,2-e]pyridine scaffold from 2-(cyanomethyl)benzimidazole and 3-trifluoroacetyl-4-phenyl-4H-chromene has been developed ...
Dmitry V. Osipov, Pavel E. Krasnikov, Vitaly A. Osyanin   +2 more
doaj   +1 more source

The synthesis of functionalized bridged polycycles via C–H bond insertion

Beilstein Journal of Organic Chemistry, 2016
This review presents examples from the chemical literature of syntheses of bridged-polycyclic products via C–H bond insertion by carbenes and nitrenes.
Jiun-Le Shih, Po-An Chen, Jeremy A. May
doaj   +1 more source

AuNPs/CaHF NPs/N-GDY as bifunctional nanozyme breaking pH limitation for miRNA-21 sensitive detection at physiological pH

Biosensors and Bioelectronics: X
Nanozyme cascade have garnered substantial interest in recent years due to their distinctive properties. However, the conventional stepwise cascade reaction undergoes tedious two-step operation process owing to the incompatibility of reaction conditions.
Yujing Wang, Xiaoxing Xu, Lan Gu, Rongqi Zhang, Ying Peng, Xiaoyong Jin, Beibei Kou   +6 more
doaj   +1 more source

Zn-Catalyzed Diastereo- and Enantioselective Cascade Reaction of 3-Isothiocyanato Oxindoles and 3-Nitroindoles: Stereocontrolled Syntheses of Polycyclic Spirooxindoles

, 2015
A catalytic asymmetric Michael/cyclization cascade reaction of 3-isothiocyanato oxindoles and 3-nitroindoles has been disclosed with a chiral Zn(OTf)(2)/diphenylamine-linked bis(oxazoline) complex as the catalyst.
Zhou, Ming-Qiang, Yuan, Wei-Cheng, Xu, Xiao-Ying, Zhang, Xiao-Mei, Wu, Zhi-Jun, Xu, XY (reprint author), Chinese Acad Sci, Chengdu Inst Organ Chem, Natl Engn Res Ctr Chiral Drugs, Chengdu 610041, Peoples R China., Zhao, Jian-Qiang   +6 more
core   +1 more source

An Unexpected Formation of Spiro Isoxazoline-Dihydrofurane Compounds from Substituted Ketofurfuryl Alcohols

Molecules
Oximation of substituted ketofurfuryl alcohols in the presence of hydroxylamine hydrochloride and pyridine in ethanol as solvent led to a new class of spiro derivatives presenting a 7-methylene-1,6-dioxa-2-azaspiro [4.4] nona-2,8-diene skeleton along ...
Claire Cuyamendous, Mathieu Yves Laurent, Christine Saluzzo   +2 more
doaj   +1 more source

Remote C─H Bond Activation via Enantioselective Carbopalladation and 1,4‐Pd Migration Cascade Process

Advanced Science
Carbopalladation‐initiated cascade reaction involving 1,4‐Pd migration is a straightforward and powerful approach to activate remote C─H bond, forging versatile fused polycyclic compounds containing fluorene fragment which are highly valuable synthetic ...
Bing Xu, Danting Ji, Zhan‐Ming Zhang, Junliang Zhang   +3 more
doaj   +1 more source