Results 161 to 170 of about 241,511 (301)

Catalytic Enantioselective Multicomponent Reactions of Sulfoxonium Ylides Enabled by a Formal Rearrangement—A Versatile Entry to Enantioenriched α‐Sulfanyl Carbonyl Compounds

Angewandte Chemie, EarlyView.
A catalytic network embedding a formal rearrangement enables the first catalytic enantioselective multicomponent reaction (MCR) of sulfur ylides. In the presence of a bulky chiral phosphoric acid, the reaction combines sulfoxonium ylides, aldehydes and thiols, and affords synthetically versatile β‐hydroxy‐α‐sulfanyl carbonyl compounds in ...
Nicolò Santarelli, Pietro Pecchini, Nunzio Matera, Andrea Pellegrini, Riccardo Fabbri, Irati Celada Cubero, Leire Navarro Rubio, Cristina Di Pietro, Andrea Mazzanti, Mariafrancesca Fochi, Luca Bernardi   +10 more
wiley   +2 more sources

Flavouring Group Evaluation 18, Revision 1 (FGE. 18 Rev1) : Aliphatic, alicyclic and aromatic saturated and unsaturated tertiary alcohols, aromatic tertiary alcohols and their esters from chemical groups 6 and 8

EFSA Journal, 2009
European Food Safety Authority (EFSA)
doaj   +1 more source

Glucosinolates in <i>Brassica</i> Species: Biosynthesis, Regulation, and Molecular Breeding. [PDF]

Int J Mol Sci
Zhao S, Wu M, Chen Y, Xiong Y, Wang L, Wang H, Li M.   +6 more
europepmc   +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

Flavouring Group Evaluation 59 (FGE.59): Consideration of aliphatic and aromatic ethers evaluated by JECFA (61st meeting) structurally related to aliphatic, alicyclic and aromatic ethers including anisole derivatives evaluated by EFSA in FGE.23 (2006) (Commission Regulation (EC) No 1565/2000 of 18 July 2000) ‐ Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC)

EFSA Journal, 2008
European Food Safety Authority (EFSA)
doaj   +1 more source

Transition Metal-Catalyzed Direct C(sp³)-H Functionalization Reactions of Aliphatic Carboxylic Acids. [PDF]

Chem Rev
Mal S, van Gemmeren M.
europepmc   +1 more source

Nanographene‐Based van der Waals Organic Framework With Permanent Porosity

Angewandte Chemie, EarlyView.
Unlocking record‐breaking porosity in a supramolecular organic framework (SOF). Through the strategic design of a C3‐symmetric nanographene, a robust supramolecular framework is achieved via exclusively weak van der Waals forces. This metal‐free scaffold reaches a benchmark BET surface area of 1108 m2 g−1 –the highest to date for this class–combining ...
Arturo Oró, Rubén Turo‐Cortés, Josefina Perles, José Sánchez Costa, Jesús M. Fernández‐García, Nazario Martín   +5 more
wiley   +2 more sources

Flavouring Group Evaluation 1, Revision 1 (FGE.01Rev 1): Branched‐chain aliphatic saturated aldehydes, carboxylic acids and related esters of primary alcohols and branched‐chain carboxylic acids from chemical groups 1 and 2 (Commission Regulation (EC) No 1565/2000 of 18 July 2000) ‐ Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) on a request from the Commission

EFSA Journal, 2008
European Food Safety Authority (EFSA)
doaj   +1 more source

Amidation of Quinolin-2-yl Esters: Base‑, Catalyst‑, Metal‑, and Solvent-Free Conditions. [PDF]

ACS Omega
Talati K, Rajendran S.
europepmc   +1 more source

Improved process for the transformation of primary aliphatic alcohols into higher aliphatic alcohols

, 2019
A process for obtaining higher aliphatic alcohols starting from aliphatic primary alcohols by condensation reactions is disclosed. Specifically, the process comprises a step in which an aliphatic primary alcohol is contacted in a 5 homogeneous phase with
Rita MAZZONI, ZANOTTI VALERIO, TABANELLI TOMMASO, lucarelli carlo, Valerio ZANOTTI, Fabrizio CAVANI, CAVANI FABRIZIO, MAZZONI RITA, CESARI CRISTIANA, Francesco PUZZO, Carlo LUCARELLI, Tommaso TABANELLI, Cristiana CESARI, PUZZO FRANCESCO   +13 more
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