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Kolekcje
Inne
Unusual product formation in tungsten(0)-catalysed reactions of propargylic alcohols and secondary amines : hydroamination and the construction of the tetrahydrofuran ring.
Autorzy
Rok wydania
2018
Czasopismo
Numer woluminu
455
Strony
23-31
DOI
10.1016/j.mcat.2018.05.022
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
In reactions of propargylic alcohols, RH(HO)CCCH (prop-2-yn-1-ol, meso-but-3-yn-2-ol), with secondary cyclic amines (piperidine, pyrrolidine, morpholine, 1-methylpiperazine, 4-methylpiperidine and meso-3,5-dimethylpiperidine), catalysed by cis-[W(CO)4(pip)2], previously unknown diamines containing the tetrahydrofuran ring were isolated in relatively good yield, up to 80%, identified by GC–MS, and characterized by NMR spectroscopy. The new structures were studied by DFT: the 1H and 13C chemical shifts were calculated and compared with those observed experimentally.
Słowa kluczowe
Alkynol, Hydroamination, Cyclization, Secondary amine, Tungsten catalyst
Adres publiczny
http://dx.doi.org/10.1016/j.mcat.2018.05.022
Strona internetowa wydawcy
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