Results 71 to 80 of about 65,956 (297)

Intramolecular substitutions of secondary and tertiary alcohols with chirality transfer by an iron(III) catalyst

Nature Communications, 2019
The direct substitution of the OH group of stereogenic alcohols are reported rarely in literature. Here, the authors demonstrate direct substitution of both secondary and tertiary alcohols with chirality transfer leading to enantioenriched 5-membered, 6 ...
Rahul A. Watile, Anon Bunrit, Jèssica Margalef, Sunisa Akkarasamiyo, Rabia Ayub, Emi Lagerspets, Srijit Biswas, Timo Repo, Joseph S. M. Samec   +8 more
doaj   +1 more source

Iodine-catalyzed Transformation of Aryl-substituted Alcohols under Solvent-free and highly concentrated Reaction Conditions

Acta Chimica Slovenica, 2017
Iodine-catalyzed transformations of alcohols under solvent-free reaction conditions (SFRC) and under highly concentrated reaction conditions (HCRC) in the presence of various solvents were studied in order to gain insight into the behavior of the ...
Marjan Jereb, Dejan Vražič
doaj   +1 more source

Clinical and Modifiable Factors Associated With Disability and Relapse in MOGAD: A Multicentre Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Factors associated with relapse course and disability in myelin oligodendrocyte glycoprotein antibody‐associated disease (MOGAD) remain incompletely understood. Objectives To identify clinical and modifiable factors associated with relapse and disability in MOGAD. Methods In this ambispective multicentre cohort study using data from
Yingtao Wang, Shaoxin Tao, Qiujia Wang, Xiaoyu Xu, Hui Yao, Zheng Liu, Dawei Li, Zhandong Qiu, Jinming Han, Jiangwei Xia, Qi Wang, Jun Sun, Kai Shao, Jiao Li, Shishuang Ruan, Yi Zhong, Jun Guo, Shougang Guo, Yue Huang, Guoliang Chai, Tao Jin, Hongyu Zhou, Junwei Hao, Yinan Zhao   +23 more
wiley   +1 more source

Heterobimetallic Complexes as Catalyst Precursors for the Oppenauer-Type Oxidation of Alcohols

CHIMIA, 2005
A heterobimetallic Ru(II)-Rh(I) complex has been identified as a potent catalyst precursor for the Oppenauer-type oxidation of alcohols. With 0.1–0.5 mol% of this complex and K2CO3 as the co-catalyst, it is possible to oxidize secondary and ...
Sébastien Gauthier, Kay Severin
doaj   +1 more source

Ruthenium(III)-Catalyzed β‑Alkylation of Secondary Alcohols with Primary Alcohols

, 2016
A Ru­(III)-NNN complex bearing a pyridyl-supported pyrazolyl-imidazolyl ligand was synthesized and utilized as the catalyst for the direct β-alkylation of secondary alcohols with primary alcohols.
Zhengkun Yu (1489108), Kaikai Wu (1652059), Qingfu Wang (1489111)   +2 more
core   +1 more source

Factors Associated With the Rising Trend in Self‐Reported Cognitive Disability Among U.S. Adults Aged 18–39 From 2013–2024

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Building on our prior Behavioral Risk Factor Surveillance System analysis identifying adults aged 18–39 as the primary driver of the national increase in self‐reported cognitive disability, we examined factors associated with this rise using 2013–2024 U.S. BRFSS data. Methods We analyzed U.S.
Adam de Havenon, Ka‐Ho Wong, Mirriam Mananah, Christopher D. Anderson, Ada Fenick, Amy Arnsten, Arman Fesharaki‐Zadeh, James C. McPartland, Mary L. Adams, Kevin N. Sheth   +9 more
wiley   +1 more source

Ruthenium(III)-Catalyzed beta-Alkylation of Secondary Alcohols with Primary Alcohols

, 2016
A Ru(III)-NNN complex bearing a pyridyl-supported pyrazolyl-imidazolyl ligand was synthesized and utilized as the catalyst for the direct beta-alkylation of secondary alcohols with primary alcohols.
Wu, Kaikai, Wang, Qingfu, Yu, Zhengkun
core   +1 more source

‐alkylation of Amines with Alcohols and β‐Alkylation of Secondary Alcohols with Primary Alcohols

, 2023
Borrowing hydrogen (BH) reactions are very useful for the sustainable synthesis of C−C and C−N bonds. They generally operate with transition metal-based catalysts along with stoichiometric/catalytic amounts of added base.
Ola F. Wendt, Johnson, Magnus T., Tan, Mattias,, Johnson, Magnus T.,, Mattias Tan, Magnus T. Johnson, Wendt, Ola F.,, Garg, Nitish K.,, Nitish K. Garg, Wendt, Ola F., Garg, Nitish K., Tan, Mattias, Lund University.   +12 more
core   +1 more source

Mucocutaneous Disease Activity and Damage Accrual in Systemic Lupus Erythematosus: Analyses From the Asia‐Pacific Lupus Collaboration Longitudinal Cohort Study

Arthritis Care &Research, EarlyView.
Objective This research article aims to describe the prevalence, associations, and health‐related quality of life (HRQoL) impact of mucocutaneous features of systemic lupus erythematosus (SLE). Methods Data from the Asia‐Pacific Lupus Collaboration cohort were analyzed (2013–2021).
Amanda M. Saracino, Yanjie Hao, Dylan Hansen, Yi‐Hsing Chen, Alberta Hoi, Vera Golder, Jiacai Cho, Aisha Lateef, Worawit Louthrenoo, Laniyati Hamijoyo, Shue Fen Luo, Yeong‐Jian Jan Wu, Sandra Navarra, Leonid Zamora, Chak Sing Lau, Shirley Chan, Zhanguo Li, Hai‐hong Yao, Sargunan Sockalingam, B. M. D. B. Basnayake, Yasuhiro Katsumata, Masayoshi Harigai, Zhuoli Zhang, Jun Kikuchi, Yuko Kaneko, Tsutomu Takeuchi, Madelynn Chan, Sang‐Cheol Bae, Fiona Goldblatt, Sean O'Neill, Geraldine Hassett, Kristine Ng, Nicola Tugnet, Mark Sapsford, Yih Jia Poh, Michael Tee, Cherica Tee, Naoaki Ohkubo, Yoshiya Tanaka, Rangi Kandane‐Rathnayake, Eric Morand, Shereen Oon, Mandana Nikpour   +42 more
wiley   +1 more source

Direct oxidative arylation via rhodium-catalyzed C-C bond cleavage of secondary alcohols with arylsilanes

, 2012
An unprecedented example of sequential pyridinyl directed C-C cleavage of secondary alcohols/oxidative arylation with arylsilanes via Rh(III) catalysis is reported.
Lei, Zhi-Quan, Li, Hu, Chen, Kang, Shi, Zhang-Jie, Li, Yang, Zhang, Xi-Sha, Lei, ZQ (reprint author), Peking Univ, BNLMS, Minist Educ, Coll Chem, Beijing 100871, Peoples R China.   +6 more
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