Results 1 to 10 of about 160,515 (349)

Catalytic Acceptorless Dehydrogenation (CAD) of Secondary Benzylic Alcohols into Value-Added Ketones Using Pd(II)–NHC Complexes [PDF]

Molecules, 2023
For the creation of adaptable carbonyl compounds in organic synthesis, the oxidation of alcohols is a crucial step. As a sustainable alternative to the harmful traditional oxidation processes, transition-metal catalysts have recently attracted a lot of ...
Abeer Nasser Al-Romaizan, Manoj Kumar Gangwar, Ankit Verma, Salem M. Bawaked, Tamer S. Saleh, Rahmah H. Al-Ammari, Ray J. Butcher, Ibadur Rahman Siddiqui, Mohamed Mokhtar M. Mostafa   +8 more
doaj   +2 more sources

Pd-catalyzed enantioselective aerobic oxidation of secondary alcohols: Applications to the total synthesis of alkaloids [PDF]

, 2008
Enantioselective syntheses of the alkaloids (-)-aurantioclavine, (+)-amurensinine, (-)-lobeline, and (-)- and (+)-sedamine are described. The syntheses demonstrate the effectiveness of the Pd-catalyzed asymmetric oxidation of secondary alcohols in ...
Bagdanoff, Jeffrey T., Ebner, David C., Krishnan, Shyam, Ramtohul, Yeeman K., Stoltz, Brian M., Tambar, Uttam K.   +5 more
core   +3 more sources

CALB Immobilized onto Magnetic Nanoparticles for Efficient Kinetic Resolution of Racemic Secondary Alcohols: Long-Term Stability and Reusability [PDF]

Molecules, 2019
In this study, an immobilization strategy for magnetic cross-linking enzyme aggregates of lipase B from Candida antarctica (CALB) was developed and investigated. Magnetic particles were prepared by conventional co-precipitation.
Xiu Xing, Jun-Qi Jia, Jing-Fan Zhang, Zi-Wen Zhou, Jun Li, Na Wang, Xiao-Qi Yu   +6 more
doaj   +2 more sources

Scientific Opinion on Flavouring Group Evaluation 7, Revision 5 (FGE.07Rev5): saturated and unsaturated aliphatic secondary alcohols, ketones and esters of secondary alcohols and saturated linear or branched-chain carboxylic acids from chemical group 5. [PDF]

EFSA J, 2017
Acknowledgements: The Panel wishes to thank the members of the Working Group on Flavourings: Ulla Beckman Sundh, Leon Brimer, Karl-Heinz Engel, Paul Fowler, Rainer Gürtler, Trine Husøy, Wim Mennes and Gerard Mulder for the preparatory work on this ...
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF), Silano V, Bolognesi C, Castle L, Cravedi JP, Engel KH, Fowler P, Franz R, Grob K, Gürtler R, Husøy T, Kärenlampi S, Milana MR, Penninks A, Tavares Poças MF, Smith A, Tlustos C, Wölfle D, Zorn H, Zugravu CA, Beckman Sundh U, Brimer L, Mosesso P, Mulder G, Anastassiadou M, Mennes W.   +27 more
europepmc   +5 more sources

Determination of the Absolute Configuration of Secondary Alcohols in a Compound Mixture via the Application of Competing Enantioselective Acylation Coupled with LC/MS Analysis [PDF]

Pharmaceutics
The determination of natural product stereochemistry plays a significant role in drug discovery and development. Understanding the stereochemistry of natural products is essential for predicting and optimizing their interactions with biological targets ...
Bum Soo Lee, Hoon Kim, Jiwon Baek, Rhim Ryoo, Seoung Rak Lee, Ki Hyun Kim   +5 more
doaj   +2 more sources

The Palladium-Catalyzed Aerobic Kinetic Resolution of Secondary Alcohols: Reaction Development, Scope, and Applications [PDF]

, 2009
The first palladium-catalyzed enantioselective oxidation of secondary alcohols has been developed, utilizing the readily available diamine (-)-sparteine as a chiral ligand and molecular oxygen as the stoichiometric oxidant. Mechanistic insights regarding
Bagdanoff, Jeffrey T., Caspi, Daniel D., Ebner, David C., Ferreira, Eric M., McFadden, Ryan M., Stoltz, Brian M., Trend, Raissa M.   +6 more
core   +3 more sources

Mechanically induced oxidation of alcohols to aldehydes and ketones in ambient air: Revisiting TEMPO-assisted oxidations [PDF]

Beilstein Journal of Organic Chemistry, 2017
The present work addresses the development of an eco-friendly and cost-efficient protocol for the oxidation of primary and secondary alcohols to the corresponding aldehydes and ketones by mechanical processing under air. Ball milling was shown to promote
Andrea Porcheddu, Evelina Colacino, Giancarlo Cravotto, Francesco Delogu, Lidia De Luca   +4 more
doaj   +4 more sources

Site-Selective Dehydroxy-Chlorination of Secondary Alcohols in Unprotected Glycosides. [PDF]

Org Lett, 2022
Zhang J, Reintjens NRM, Dhineshkumar J, Witte MD, Minnaard AJ.   +4 more
europepmc   +3 more sources

Realizing 1,1-Dehydration of Secondary Alcohols to Carbenes: Pyrrolidin-2-ols as a Source of Cyclic (Alkyl)(Amino)Carbenes. [PDF]

Angew Chem Int Ed Engl, 2022
Das A, Elvers BJ, Nayak MK, Chrysochos N, Anga S, Kumar A, Rao DK, Narayanan TN, Schulzke C, Yildiz CB, Jana A.   +10 more
europepmc   +3 more sources

Manganese(I)-Catalyzed Cross-Coupling of Ketones and Secondary Alcohols with Primary Alcohols [PDF]

ACS Omega, 2019
Suhas Shahaji Gawali, Biplab Keshari Pandia, Souvik Pal, Chidambaram Gunanathan   +3 more
doaj   +2 more sources