Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Manfred Hagedorn"'
Publikováno v:
ARKIVOC, Vol 2016, Iss 5, Pp 338-361 (2016)
Externí odkaz:
https://doaj.org/article/9393f871e4d34a819c7bb502d6183ac7
Publikováno v:
Molecules, Vol 20, Iss 12, Pp 21328-21335 (2015)
Synthesis of azido(trimethylsilyl)acetylene (6) was performed by treating the iodonium salt 5 with highly soluble hexadecyltributylphosphonium azide (QN3) at −40 °C. Although this product is very unstable, it can nevertheless be trapped by the cli
Externí odkaz:
https://doaj.org/article/d4388963bac0418a92996106f499d7f7
Publikováno v:
ARKIVOC, Vol 2012, Iss 3, Pp 379-390 (2012)
Externí odkaz:
https://doaj.org/article/a832e38accff4029b0e45ffc97bae457
Autor:
Chao Song, Manfred Hagedorn, Guntram Rauhut, Xiaoqing Zeng, Lina Wang, Bo Lu, Xianxu Chu, Klaus Banert, Yuanyuan Qin
Publikováno v:
Angewandte Chemie International Edition. 58:17277-17281
Alkynyl isocyanates have been postulated as highly reactive intermediates in synthetic chemistry. Herein, the parent molecule HC≡CNCO is isolated for the first time. In sharp contrast to the previously reported short lifetime (ca. 15 s) at room tem
Autor:
Klaus Banert, Manfred Hagedorn
Publikováno v:
Synlett. 30:1427-1430
A series of 16 articles, dealing with formation of tricyanomethanide salts from nitrogen bases (amines) and tricyanomethane, turned out to be wrong because no tricyanomethane or similar compounds are used and no tricyanomethanide salts are prepared.
Autor:
Raphael Hertel, Manuel Heck, Paul R. Rablen, Andreas Ihle, Klaus Banert, Tom Pester, Manfred Hagedorn, Tharallah Shoker, Ioana Müller
Publikováno v:
The Journal of organic chemistry. 85(21)
A number of amines with three bulky alkyl groups at the nitrogen, which surpass the steric crowding of triisopropylamine considerably, were prepared by using different synthetic methods. It turned out that treatment of N-chlorodialkylamines with orga
Autor:
Manfred Hagedorn, Tony Stüker, Heinrich Lang, Sebastian Riedel, Klaus Banert, Helmut Beckers, Madhu Chityala, Tobias Rüffer
Publikováno v:
Angewandte Chemie. 129:9710-9714
Losungen von Azidomethylidenmalononitril wurden bei tiefer Temperatur photolysiert, um das entsprechende 2H-Azirin und Tricyanmethan zu bilden, was durch Tieftemperatur-NMR-Spektroskopie analysiert wurde. Das letztgenannte Produkt wurde auch nach kur
Autor:
Klaus Banert, Manfred Hagedorn, Tony Stüker, Tobias Rüffer, Sebastian Riedel, Helmut Beckers, Madhu Chityala, Heinrich Lang
Publikováno v:
Angewandte Chemie International Edition. 56:9582-9586
Solutions of azidomethylidenemalononitrile were photolyzed at low temperatures to produce the corresponding 2H-azirine and tricyanomethane, which were analyzed by low-temperature NMR spectroscopy. The latter product was also observed after short ther
Publikováno v:
Org. Chem. Front., 2017,4, 191-195
For the first time, successful synthesis of an unknown class of compounds, 3-azido-2H-azirines, which are implicated as highly reactive intermediates in the thermolysis of the corresponding 1,1-diazidoethenes, has been performed. These elusive hetero
Autor:
Manfred Hagedorn, Stefan Spange
Publikováno v:
Nachrichten aus der Chemie. 69:60-60