Results 91 to 100 of about 7,765 (231)

Aziridine

, 2009
Azirydyna jest bezbarwną, lotną, wysoce łatwopalną cieczą o zapachu podobnym do amonia-ku. Jest stosowana do produkcji trietylenomelaminy i 2-azirydynyloetanolu oraz jako monomer do produkcji polimerów (głównie polietylenoiminy).
Zaborowska, A., Konieczko, K., Czerczak, S.   +2 more
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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

Salen–scandium(III) complex-catalyzed asymmetric (3 + 2) annulation of aziridines and aldehydes

Beilstein Journal of Organic Chemistry
Oxazolidine is one of the crucial structural moieties of biologically active compounds. A salen–scandium triflate complex-catalyzed asymmetric (3 + 2) annulation of dialkyl 1-sulfonylaziridine-2,2-dicarboxylates and aldehydes generated optically active ...
Linqiang Wang, Jiaxi Xu
doaj   +1 more source

Metal-free one-pot synthesis of 2-substituted and 2,3-disubstituted morpholines from aziridines

Beilstein Journal of Organic Chemistry, 2015
The metal-free synthesis of 2-substituted and 2,3-disubstituted morpholines through a one-pot strategy is described. A simple and inexpensive ammonium persulfate salt enables the reaction of aziridines with halogenated alcohols to proceed via an SN2-type
Hongnan Sun, Binbin Huang, Run Lin, Chao Yang, Wujiong Xia   +4 more
doaj   +1 more source

2-[3-(Aziridin-1-yl)-2-hydroxypropyl]-5,5-dimethyl-2,5-dihydro-4H-benzo[e]isoindol-4-one (Cytotoxic Oxonaphthalene-Pyrroles, Part III)

Molbank, 2012
An hydroxypropyl-aziridine-containing side chain is attached to an oxonaphthalene-annelated pyrrole in expectation of DNA alkylating properties. The cytotoxicity is evaluated against two cell lines, KB-31 and KB-8511, respectively.
Christiane Puschmann, Helmut Spreitzer
doaj   +1 more source

Aziridine – a determination method

, 2011
Metoda polega na chemisorpcji zawartej w powietrzu azirydyny na żywicy XAD-2 z naniesionym izo-tiocyjanianem 1-naftylu, desorpcji N,N-dimetyloformamidem i analizie otrzymanego roztworu metodą wysokosprawnej chromatografii cieczowej.The method is based on
Jeżewska, A.
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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

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
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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

Functionalised Enones as Starting Materials for the Construction of Aziridine Scaffolds

, 2003
alpha-Substituted beta-keto esters have been transformed by means of a straightforward procedure into aziridine-1,2-dicarboxylates, which have been efficiently converted into alkenyl aziridine-1,2-dicarboxylates through Wittig olefination reaction.
MORREALE, Alberto, PELLACANI, Lucio, FIORAVANTI, Stefania, TARDELLA, Paolo Antonio   +3 more
core   +1 more source