Results 221 to 230 of about 214,379 (306)

Direct δ‐Lactone Synthesis From Free Alcohols via Photoinduced δ‐C(sp3)–H Carbonylation in Flow

Angewandte Chemie, EarlyView.
Herein, we have developed a photo‐flow platform for the δ‐C(sp3)─H carbonylative lactonization of free alcohols with carbon monoxide. The transformation integrates alkoxyl radical generation, selective 1,5‐HAT, CO incorporation, and radical–polar crossover to enable direct access to δ‐lactones from simple alcohol precursors.
Prakash Chandra Tiwari, Runkang Liu, Timothy Noël   +2 more
wiley   +2 more sources

Effects of sleep restriction on cognitive and physical performance in elite karate athletes: A randomized crossover study. [PDF]

Medicine (Baltimore)
Amri A, Faleh J, Ben Aissa M, Ceylan Hİ, Ben Hassen S, Hmaidi J, Guelmami N, Dergaa I, Ștefănică V, Souissi N.   +9 more
europepmc   +1 more source

Isolation of a Highly Reactive CBNC Heterocumulene via Azidoborylene Photolysis: Facile Access to a Crystalline Dioxaborirane

Angewandte Chemie, EarlyView.
Azidoborylene photolysis results in the isolation of a reactive C═B═N═C heterocumulene bearing an ambiphilic boron centre. Addition of 3O2 to this species results in the clean conversion to a unique example of a dioxaborirane. ABSTRACT Oxidation of the formal boron(0) complex MeCAAC2B in the presence of tetrabutylammonium azide leads to the formation ...
Hayley King, Vignesh Pattathil, William Kennedy, Robert K. Szilagyi, Conor Pranckevicius   +4 more
wiley   +2 more sources

Impact of flash glucose monitoring versus capillary blood glucose monitoring on glycaemia in Indian youth with type 1 diabetes: a randomised crossover study. [PDF]

BMJ Paediatr Open
Saiyed M, James S, Eigenmann C, Haynes A, Von Oettingen J, Ogle GD, Saboo B.   +6 more
europepmc   +1 more source

Iron‐Photocatalyzed C(sp3)–H Phosphonylation of Alkanes

Angewandte Chemie, EarlyView.
Alkyl phosphonates are valuable motifs that can be prepared by phosphonylations of various common functional groups. However, direct phosphonylations of C(sp3)–H bonds are limited to activated positions. Herein, we report an iron‐photocatalyzed phosphonylation of unactivated C(sp3)–H bonds using a novel phosphite radical trap, which is equipped with an
Ya Dong, Wangyujing Han, Hanwen Zhang, Santosh K. Pagire, Harry Meats, Adam Noble, Varinder K. Aggarwal   +6 more
wiley   +2 more sources

Novel Magnetic Countertraction Enhanced Performance in Colonic Endoscopic Submucosal Dissection: An Ex Vivo Crossover Study (With Video). [PDF]

Dig Endosc
Yip HC, Chan WS, Hau SF, Cheng NM, Lau LH, Chu S, Zhu Z, Yung MY, Tse YK, Li Z, Ng SS, Chiu PW.   +11 more
europepmc   +1 more source

Effect of Δ9-tetrahydrocannabinol and cannabidiol on myofascial pain modulation in patients with temporomandibular disorder: a prospective crossover study. [PDF]

Clinics (Sao Paulo)
Schinko FGB, Paranhos LR, Gonçalves de Sousa L, Phelipe de Paula Santos G, de Mello Rode S, Sergio Guimarães A, Cama Ramacciato J.   +6 more
europepmc   +1 more source

Comparative Impact of ChatGPT and Conventional Search Tools on Clinical Reasoning Performance: A Randomized Crossover Study in Preclinical Medical Students [Response to Letter]. [PDF]

Adv Med Educ Pract
Nartthanarung A, Plangsiri K, Kongmalai P.   +2 more
europepmc   +1 more source

Observational Case-Crossover Study [PDF]

, 2020
openaire   +1 more source