Results 321 to 330 of about 537,407 (394)

Selective and Waste‐Free Isolation of High Purity Primary Amines from Amine and Reaction Mixtures by Selective Ammonium Carbamate Crystallization

Chemistry – A European Journal, EarlyView.
Synthesizing primary amines either leads to a challenging separation from secondary and tertiary amine side products or a separation of the desired product from a selective homogeneous catalyst. This work presents an efficient isolation strategy based on CO2‐induced waste‐free and reversible salt formation combined with selective crystallization ...
Bernd Rienhoff, Dilara Mede, Mara Schöler, Dieter Vogt, Thomas Seidensticker   +4 more
wiley   +1 more source

Reflux Esophagitis. [PDF]

Korean J Helicobacter Up Gastrointest Res
Jung K.
europepmc   +1 more source

Study on Phosphorus Compound/Catechol‐Catalyzed Dehydrative Amidation and Its Database Development for Machine Learning

Chemistry – A European Journal, EarlyView.
A novel phosphorus‐based catalytic system for the direct amidation of carboxylic acids with amines has been developed. The efficiency of the phosphorus catalysis is substantially enhanced using catechol derivatives as additives. A vault of experimental data obtained this time was complemented with ML models, which allowed capturing the intricate ...
Taiki Nagano, Dattatraya B. Bagal, Ryuga Kunisada, Haruno Nakajima, Koki Sano, Naoki Noto, Susumu Saito   +6 more
wiley   +1 more source

Overlapping Reflux Symptoms in Functional Dyspepsia Are Mostly Unrelated to Gastroesophageal Reflux. [PDF]

J Neurogastroenterol Motil
Chen S, Jia X, Zhuang Q, Hou X, Siah KTH, Zhang M, Chen F, Tan N, Hu J, Xiao Y.   +9 more
europepmc   +1 more source

Anti-reflux mucosectomy superior to argon plasma coagulation in managing Barrett's esophagus by improving lower esophageal sphincter pressure and cardiac sphincter valve function: a single-center, retrospective study. [PDF]

Therap Adv Gastroenterol
Liu T, Mei Z.
europepmc   +1 more source

Advances in the diagnosis and treatment of primary deep venous valve insufficiency. [PDF]

Eur J Med Res
Wang C, Hu N, Li WD, Du XL, Sun LL, Xiao L, Li XQ.   +6 more
europepmc   +1 more source

Globus: Its True Relationship to Acid Reflux? Opposing Patterns of Location-specific Basal Pressure Compared to Gastroesophageal Reflux Disease. [PDF]

J Neurogastroenterol Motil
Cha B.
europepmc   +1 more source

Retroiliac ureter with persisting mesonephric duct and vesicoureteral reflux presenting as left inguinal mass during defecation: a case report. [PDF]

BMC Urol
Zhao Y, Zhu L, Yang F, Chen G.
europepmc   +1 more source