Zobrazeno 1 - 10
of 184
pro vyhledávání: '"Gert Kollenz"'
Autor:
Gert Kollenz, Curt Wentrup
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 14, Iss 1, Pp 1-10 (2018)
Dipivaloylketene (2) is obtained by flash vacuum pyrolysis of furan-2,3-dione 6 and dimerizes to 1,3-dioxin-4-one 3, which is a stable but reactive ketene. The transannular addition and rearrangement of enols formed by the addition of nucleophiles to
Externí odkaz:
https://doaj.org/article/8e1f97297dff4eba91eda2c40c86e1d6
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 11, Iss 1, Pp 1-8 (2015)
The structures of two derivatives of the bisdioxine diisocyanate 1, the bisurea 4 and the biscarbamate 5, are established by X-ray crystallography and DFT calculations. These compounds possess endo,endo structures, in the case of the bisurea 4 with t
Externí odkaz:
https://doaj.org/article/1582405710e44234980d5ef36fe3b04b
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 738-743 (2012)
C72-Macrocyclic systems functionalized with nitroaryl and arylamino groups were synthesized from the bisdioxine diacid dichloride 1,3,5,7-tetra-tert-butyl-2,6,9-trioxabicyclo[3.3.1]nona-3,7-diene-4,8-dicarbonyl dichloride (3).
Externí odkaz:
https://doaj.org/article/7493d68a86a341c197f4111588079b26
Publikováno v:
ARKIVOC, Vol 2003, Iss 5, Pp 62-68 (2003)
Externí odkaz:
https://doaj.org/article/05f4b2e258b043888e922199ca9c0a73
Publikováno v:
ARKIVOC, Vol 2001, Iss 6, Pp 30-41 (2001)
Externí odkaz:
https://doaj.org/article/fa1ef08f04fa4da398857954b52ba1e3
Publikováno v:
ARKIVOC, Vol 2000, Iss 1, Pp 74-79 (2000)
Externí odkaz:
https://doaj.org/article/023adef700704872a4ec7d1e01171ebc
Autor:
Curt Wentrup, Gert Kollenz
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 14, Iss 1, Pp 1-10 (2018)
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry
Dipivaloylketene (2) is obtained by flash vacuum pyrolysis of furan-2,3-dione 6 and dimerizes to 1,3-dioxin-4-one 3, which is a stable but reactive ketene. The transannular addition and rearrangement of enols formed by the addition of nucleophiles to
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 11, Iss 1, Pp 1-8 (2015)
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry
The structures of two derivatives of the bisdioxine diisocyanate 1, the bisurea 4 and the biscarbamate 5, are established by X-ray crystallography and DFT calculations. These compounds possess endo,endo structures, in the case of the bisurea 4 with t
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 738-743 (2012)
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry
C72-Macrocyclic systems functionalized with nitroaryl and arylamino groups were synthesized from the bisdioxine diacid dichloride 1,3,5,7-tetra-tert-butyl-2,6,9-trioxabicyclo[3.3.1]nona-3,7-diene-4,8-dicarbonyl dichloride (3).
Publikováno v:
Supramolecular Chemistry. 24:279-284
The novel 1,2-bridged calix[6]arene 5 is prepared in a cyclocondensation reaction of 1,3,5,7-tetra-tert-butyl-2,6,9-trioxabicyclo[3.3.1]nona-3,7-diene-4,8-dicarbonylchloride (‘bisdioxine’) 2 with p-tert-butylcalix[6]arene. Elucidation of its stru