Results 231 to 240 of about 398,375 (367)

Synthesis of a Molecular Tweezer Based on Norbornadiene Framework: Unexpected Stereoselectivity

open access: yesAsian Journal of Organic Chemistry, EarlyView.
A new type of Klarner's molecular tweezer was synthesized through annulation of an α‐amino ketone. Surprisingly, the reaction takes place stereoselectivity though the initial amino ketone is racemic. This tweezer comprises two near‐parallel flat aromatic rings as pincers, each bearing two methyl ester groups, and a pyrazine unit as the tether ...
Evren Cücü   +3 more
wiley   +1 more source

Benzo[cd]Perylenyl: A π‐Expanded Phenalenyl Radical With Enhanced Aggregation Enthalpy and Stability

open access: yesAsian Journal of Organic Chemistry, EarlyView.
The π‐expanded radical, benzo[cd]perylenyl exhibits remarkable stability with a half‐life of 63 days in air. Its extensively delocalized singly occupied molecular orbital (SOMO), combined with enhanced dispersion force, promotes strong π‐dimerization in solution at low temperatures.
Yuga Ono   +8 more
wiley   +1 more source

Health‐related quality of life following total minimally invasive, hybrid minimally invasive or open oesophagectomy: a population‐based cohort study

open access: yesBJS (British Journal of Surgery), EarlyView., 2020
All patients operated for oesophageal cancer in Sweden from 2013 to April 2018 were identified, and 246 patients were recruited to this population‐based nationwide Swedish study. The results show that longitudinal health‐related quality of life after minimally invasive oesophagectomy was similar to that of the open surgical approach.
F. Klevebro   +4 more
wiley   +1 more source

Synthesis of Benzodithieno[5.5.5.6]fenestranes: Unexpected Epimerization and Regiochemical Outcomes

open access: yesAsian Journal of Organic Chemistry, Accepted Article.
Isomeric [5.5.5.6]fenestranes bearing one benzene and two thiophene rings annulated to all‐cis‐ and cis,cis,trans,cis‐fenestrane cores are presented. The synthesis route previously established for the corresponding tribenzo[5.5.5.6]fenestranes includes twofold cyclodehydration of the stereoisomeric spiro[cyclohexane‐1,2’‐indane]‐1',3'‐diol ...
Dietmar Kuck   +5 more
wiley   +1 more source

Hydrothermal duodenal mucosal resurfacing: a novel procedural therapy for metabolic disease

open access: yesVideoGIE, 2016
Manoel Galvao Neto, MD   +4 more
doaj  

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