Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Maher R. Ibrahim"'
Autor:
Nader A. Al-Jalal, Maher R. Ibrahim, Nouria A. Al-Awadi, Mohamed H. Elnagdi, Yehia A. Ibrahim
Publikováno v:
Molecules, Vol 19, Iss 12, Pp 20695-20708 (2014)
Irradiation of benzotriazoles 1a–e at λ = 254 nm in acetonitrile solution generated the corresponding 1,3-diradicals which underwent intermolecular cycloaddition with maleimides to afford the corresponding dihydropyrrolo[3,4-b]indoles and with ace
Externí odkaz:
https://doaj.org/article/f5f72af9a4bd4fe4b68fbb5549b7f489
Publikováno v:
Molecules, Vol 17, Iss 12, Pp 13891-13909 (2012)
A series of new monoazo disperse dyes containing pyrazolopyrimidine moieties was synthesized by coupling malononitrile or 3-aminocrotononitrile with 4-hydroxy- benzenediazonium chloride. Treatment of the resulting products with hydrazine hydrate yiel
Externí odkaz:
https://doaj.org/article/f1550a1a32034724a36064b1c85dccfd
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 441-447 (2012)
An efficient three component reaction with enaminones, primary amines and aldehydes resulted in easy access to 1,4-dihydropyridines with different substituents at the 1-, 3-, 4- and 5-positions. Microwaves improved the reaction yield, reducing also c
Externí odkaz:
https://doaj.org/article/6699a170f4904418b9380d7f4239966a
Publikováno v:
Molecules, Vol 16, Iss 12, Pp 10256-10268 (2011)
Irradiation of 1-substituted benzotriazole arylhydrazones 3a–c, 4a,b and 5a,b with a 16 W low pressure mercury arc-lamp (254 nm) for 24 h gave phenanthridin-6-yl-2-phenyldiazines 9a–c, phenanthridin-6(5H)-ones 10a–c, 1-anilinobenzimidazoles 11a
Externí odkaz:
https://doaj.org/article/7226cf4414a047109775bc5f8879bd33
Publikováno v:
ARKIVOC, Vol 2011, Iss 10, Pp 299-308 (2011)
Externí odkaz:
https://doaj.org/article/cdfc4282b0d74b49b611b115eca17d50
Synthesis of Some Novel Pyrazolo[1,5-a]pyrimidine Derivatives and Their Application as Disperse Dyes
Publikováno v:
Molecules, Vol 16, Iss 6, Pp 5182-5193 (2011)
A series of novel monoazo-disperse dyes containing pyrazolo[1,5-a]pyrimidine structures were synthesized starting with the coupling reaction between ethyl cyanoacetate and 4-hydroxybenzenediazonium chloride, followed by treatment of the resulting hyd
Externí odkaz:
https://doaj.org/article/39a305346e984b99a961e1c1f9b2fa9d
Publikováno v:
ARKIVOC, Vol 2011, Iss 2, Pp 310-321 (2011)
Externí odkaz:
https://doaj.org/article/d47858d545814acbbf2cbb36fc4ed19a
Publikováno v:
ARKIVOC, Vol 2010, Iss 10, Pp 149-162 (2010)
Externí odkaz:
https://doaj.org/article/12cbf6ed968a45d6833757bba8ddea2e
Publikováno v:
Molecules, Vol 15, Iss 1, Pp 407-419 (2010)
Flash vacuum pyrolysis (FVP) of 4-aryl-3-buten-2-ols [ArCH=CH-CH(CH3)OH, where Ar is phenyl, p-MeO, p-Me, p-Cl, p-NO2] gave the corresponding buta-1,3-dien-1-ylbenzene (ArCH=CH-CH=CH2, where Ar is Ph, p-MeO, p-Me, p-Cl, p-NO2) and 7-X-1,2-dihydronaph
Externí odkaz:
https://doaj.org/article/8103a3c827f3443e87cd5e09e6ff979d
Publikováno v:
Molecules, Vol 21, Iss 7, p 866 (2016)
Irradiation of an acetonitrile solution of 4-aryl-3,5-dibenzoyl-1,4-dihydropyridine derivatives 1a–c and maleimides 2a–c using medium pressure Hg-arc lamp (λ > 290) nm afforded three different cycloadducts 4, 5, 6 in addition to the oxidation pr
Externí odkaz:
https://doaj.org/article/96867452bbc649fc92b7461540d8b06a