Results 91 to 100 of about 8,858 (221)

Progress of Enantioselective Nitrile Biotransformations in Organic Synthesis

CHIMIA, 2009
Recent progress of enantioselective biotransformations of nitriles including various functionalized nitriles, ?-hydroxy and ?-amino nitriles, oxirane- and aziridine-containing carbonitriles is summarized in this short review article.
Mei-Xiang Wang
doaj   +1 more source

Aziridine−Allylsilane-Mediated Total Synthesis of (−)-Yohimbane

, 2016
A total asymmetric synthesis of (−)-yohimbane and ent-alloyohimbane is reported. The synthesis utilizes a novel aziridine−allylsilane cyclization reaction as a key step in the synthesis.
Punit P. Seth (628027), Stephen C. Bergmeier (2042587)   +1 more
core   +1 more source

Aziridine-functionalized polydimethylsiloxanes for tailorable polymeric scaffolds: aziridine as a clickable moiety for structural modification of materials

, 2017
The utility of aziridine as a clickable moiety for post-modification of polydimethylsiloxane is demonstrated.
Hyun Kyung Moon, Seohyun Kang, Hyo Jae Yoon   +2 more
core   +1 more source

Formation of new C-C bonds in the derivatives of aziridine-2-carboxylic acid with retention of aziridine ring

, 2012
Jaunu C-C saišu veidošana aziridīn-2-karbonskābes atvasinājumos, saglabājot trīslocekļu slāpekļa heterociklus. Štrumfs B., zinātniskais vadītājs Dr. ķīm. Trapencieris P. Promocijas darbs, 165 lappuses, 6 attēli, 3 tabulas, 100 literatūras avoti. Latviešu
Štrumfs, Boriss, Boriss Štrumfs
core  

Efficient, regioselective ring-opening of activated aziridine-2-carboxylates with [¹⁸F]fluoride

, 2015
Aziridines can undergo a range of ring-opening reactions with nucleophiles. The regio- and stereochemistry of the products depend on the substituents on the aziridine. Aziridine ring-opening reactions have rarely been used in radiosynthesis.
Hansen, Paul Robert, Schjøth-Eskesen, Christina, Gillings, Nic, Kjær, Andreas   +3 more
core   +1 more source

Small Nitrogen Heterocycles Containing 1,2,3-Triazoles in the Side Chain

New libraries of aziridine and azetidine derivatives containing 1,4-disubstituted 1,2,3-triazole in the side chain as well as aziridine derivatives containing 1,5-disubstituted 1,2,3-triazole in the side chain were synthesized by transition metals ...
Suta, Krista, Stamberga, Diāna, Solops, Andrejs   +2 more
core  

Studies on Substituted Aziridine-Boranes

, 1971
2-Methylaziridine—borane, 1,2-dimethylaziridine-borane, 2,2-dimethylaziridine-borane, N-ethylaziridine-borane, 2-ethyl- aziridine-borane, and 2~phenylaziridine-borane have been prepared for the first time.
Lee, Jae
core  

Secondary 3‐Chloropiperidines: Powerful Alkylating Agents

ChemistryOpen
In previous works, we demonstrated that tertiary 3‐chloropiperidines are potent chemotherapeutics, alkylating the DNA through the formation of bicyclic aziridinium ions. Herein, we report the synthesis of novel secondary 3‐chloropiperidine analogues. The
Mats Georg, Dr. Lina Alexandra Laping, Veronica Billo, Prof. Dr. Barbara Gatto, Prof. Dr. Peter Friedhoff, Prof. Dr. Richard Göttlich   +5 more
doaj   +1 more source

A Facile Synthesis of Amino Acid Derivatives from Aziridines in Liquid Sulfur Dioxide

In the past decades aziridines have played a role of versatile intermediates and important precursors for the synthesis of nitrogencontaining biologically active compounds. Modification of aziridine cycle leads to formation of agents of different classes,
Lugiņina, Jevgeņija, Turks, Māris
core  

Glycosyl Aziridine Carbamates as Versatile Donors for Catalytically Activated Glycosylation

Catalytically promoted glycosylation continues to pose challenges in carbohydrate synthesis, as glycosyl donors that tolerate multistep manipulations often require stoichiometric activation, whereas donors amenable to catalytic activation can exhibit ...
Meifang Yang, Hui Xiao, Junwei Wang, Zijie Zhou, Yan Tan, Mengyu Li, Yanli Qiu, Liya Yang, Xin Zhou, Xiangwei Zheng, Yunxiang Zang, Weiliang Gu, Houchao Tao, Junkai Shi   +13 more
core   +2 more sources