Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Gertrud Dittmann"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 1834-1839 (2014)
Two macrocyclic bis(ureas) 1 and 2, both based on diphenylurea, have been synthesized. Compound 1 represents the smaller ring with two ethynylene groups as linkers and 2 the larger ring with two butadiynylene groups. On thermal treatment to 130 °C m
Externí odkaz:
https://doaj.org/article/3a75a2b4060844c298fe8ee4d5a60d78
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 10, Pp o1090-o1091 (2014)
The reaction of 2-(1,2,3,4-tetrahydronapthalen-1-ylidene)hydrazinecarbothioamide (TTSC) with pyrazine-2,3,5,6-tetracarbonitrile (tetracyanopyrazine, TCNP) yields the title 2:1 charge-transfer adduct, 2C11H12N3S·C6N8. The complete TCNP molecule is ge
Externí odkaz:
https://doaj.org/article/758f7116da284e6dbc3a992a1e9bdf36
Publikováno v:
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 1834-1839 (2014)
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 1834-1839 (2014)
Two macrocyclic bis(ureas) 1 and 2, both based on diphenylurea, have been synthesized. Compound 1 represents the smaller ring with two ethynylene groups as linkers and 2 the larger ring with two butadiynylene groups. On thermal treatment to 130 °C m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72560117b57892440be8db92dce6b995
https://doi.org/10.3762/bjoc.10.193
https://doi.org/10.3762/bjoc.10.193
Publikováno v:
European Journal of Inorganic Chemistry. 2009:4314-4319
The diazotisation of 2,2′-diaminotolane with one equivalent of HNO2 yields the macrocyclic bis(tolanetriazene) (tolaneN3H)2 in moderate yield. As shown by the crystal structure determination, the molecule is essentially planar. After deprotonation,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4269904b2030d945a833ba9d4b611aa
https://doi.org/10.1002/ejic.200900470
https://doi.org/10.1002/ejic.200900470
Autor:
Simon Constantine
This book concerns the persecution of the Sinti and Roma in Germany during the Second Empire (1871–1918) and Weimar Republic (1919–1933). It traces the ways in which discriminatory treatment towards'Gypsies'developed in a state ostensibly committ
Autor:
Ira A. Glazier, William P. Filby
Germans to America provides both genealogists and researchers of family history with the first extensive, indexed source of German-surname immigrants who came to all ports in the United States between 1850 and 1893. This period witnessed one of the h