Results 61 to 70 of about 19,002,772 (320)

New Transient Directing Group: Diethoxyethyl-L-Proline Facilitate Mono ortho-Arylation at Ar-yl-Amines/-Amino acids via Pd-Catalysed C(sp2)-H Activation

, 2022
The mono-ortho-arylated arylamines are constituents of various natural products but their syntheses are challenging. This report describes the new synthetic methodology for mono-ortho-arylation of aryla-mines and α-aromatic amino acids (Phenyl glycine ...
Nagendra, Sharma, Subhashree , Panda
core   +1 more source

N,N- and N,O-Bidentate-Chelation-Assisted Alkenyl C–H Functionalization

Molecules
Chelation-assisted olefinic C–H functionalization has been demonstrated to be a powerful method of constructing multi-substituted alkenes from simpler ones.
Yawei Zhang, Chengxing Peng, Xiaoli Li, Xiuying Liu, Liyuan Ding, Guofu Zhong, Jian Zhang   +6 more
doaj   +1 more source

THE INFLUENCE OF DIRECTING FUNCTION OF NURSE UNIT MANAGER AND TEAM LEADER TO THE NURSE JOB CONTENTMENT AMONG STAFF NURSES IN BLAMBANGAN DISTRICT GENERAL HOSPITAL BANYUWANGI

Jurnal Keperawatan, 2012
The service of treatment at the general hospital of Blambangan not yet run optimal prima service. Activity of MPKP and guidance function in room of VIP as sample room and room take care of to lodge other not yet been run consistently.
Achmad Sigit S
doaj   +1 more source

Transition Metals and Transition Metals/Lewis Acid Cooperative Catalysis for Directing Group Assisted para-C–H Functionalization

, 2020
In the past few decades, synthetic organic chemistry has been invigorated with the development of transition metal catalyzed directing group assisted regioselective C–H functionalization.
Sheuli Sasmal, U. Dutta, G. K. Lahiri, D. Maiti   +3 more
semanticscholar   +1 more source

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele, Calogero Virgone, Michaela Kuhlen, Sabine Irtan, Yves Reguerre, Malgorzata Krawczyk, Ewa Bien, Tal Ben‐Ami, Maja Cesen, Ricardo Lopez‐Almaraz, Andrea Ferrari, Gianni Bisogno, Dominik T. Schneider, Abbas Agaimy, Constantin Lapa, Hubert Ducou le Pointe, Rainer Claus, Catherine Daniel, Ines B. Brecht, Daniel Orbach   +19 more
wiley   +1 more source

2-Diphenylphosphinoyl-acetyl as a remote directing group for the highly stereoselective synthesis of β-glycosides

, 2021
The configuration of the anomeric glycosidic linkages is crucial for maintaining the biological functions and activities of carbohydrate molecules. However, their stereochemistry control in glycosylation represents one of the most challenging tasks in ...
Yetong, Lin, Xianglai, Liu, Peng, Xu, Yingying, Song, Biao, Yu, Weijia, Xie, Qianhui, Sun, Huiyong, Sun, Haopeng, Sun, Guolong , Li, Wei, Li   +10 more
core   +1 more source

Electrochemically driven regioselective C−H phosphorylation of group 8 metallocenes

Nature Communications, 2022
Metallocene-based phosphines are compounds with potential use in catalysis. Here, the authors report the electrochemical regioselective functionalization of group 8 metallocenes with phosphine oxides; over 60 examples of phosphorylated (benzo)ferrocenes ...
Hao Zheng, Chang-Hui Liu, Shi-Yu Guo, Gu-Cheng He, Xiang-Ting Min, Bo-Chao Zhou, Ding-Wei Ji, Yan-Cheng Hu, Qing-An Chen   +8 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

The sharp structural switch of covalent cages mediated by subtle variation of directing groups

Nature Communications, 2023
It is considered a more formidable task to precisely control the self-assembled products containing purely covalent components, due to a lack of intrinsic templates such as transition metals to suppress entropy loss during self-assembly. Here, we attempt
Qiong Chen, Zhaoyong Li, Ye Lei, Yixin Chen, Hua Tang, Guangcheng Wu, Bin Sun, Yuxi Wei, Tianyu Jiao, Songna Zhang, Feihe Huang, Linjun Wang, Hao Li   +12 more
doaj   +1 more source

Sofic groups and direct finiteness

Journal of Algebra, 2004
We construct an analogue of Neumann's affiliated algebras for sofic group algebras over arbitrary fields. Consequently, we settle Kaplansky's direct finiteness conjecture for sofic groups.
Elek, Gábor, Szabó, Endre
openaire   +3 more sources