Zobrazeno 1 - 8
of 8
pro vyhledávání: '"El-Sayed, H."'
Autor:
Mohamed F. Y. Gomaa, Nicolino Pala, Marco Derudas, Jehan Abd-Elrazik Hasanen, El-Sayed H. El-Tamany, Paola Casule, Alberto Mariani, Mario Sechi
Publikováno v:
ARKIVOC, Vol 2011, Iss 9, Pp 1-14 (2011)
Externí odkaz:
https://doaj.org/article/780e241310294e8da4f7aaa35a446632
Publikováno v:
ARKIVOC, Vol 2006, Iss 11, Pp 205-220 (2006)
Externí odkaz:
https://doaj.org/article/d4ac1e51f7f1485e98933a311fc82b4e
Publikováno v:
ARKIVOC, Vol 2006, Iss 2, Pp 178-186 (2006)
Externí odkaz:
https://doaj.org/article/8650f42f512342cd87beed1c2052ad5c
Autor:
El Sayed H. El Ashry, Ahmed A. Kassem
Publikováno v:
ARKIVOC, Vol 2006, Iss 9, Pp 1-16 (2005)
Externí odkaz:
https://doaj.org/article/744c1df2ad0e45948fb1e161a9615a5c
Publikováno v:
ARKIVOC, Vol 2005, Iss 15, Pp 97-104 (2005)
Externí odkaz:
https://doaj.org/article/31bc6ed9ccb142cca61c2ed002515379
Autor:
Nadjet Rezki, El Sayed H. El Ashry, Nagwa Rashed, S. M. Abdel-Maggeed, El Sayed Ramadan, Laila F. Awad
Publikováno v:
Scopus-Elsevier
ARKIVOC, Vol 2007, Iss 7, Pp 30-40 (2006)
ARKIVOC, Vol 2007, Iss 7, Pp 30-40 (2006)
Microwave-Assisted Organic Synthesis (MAOS) of 4,5-di- and 3,4,5-triphenylimidazole (1) and (2) has been achieved by reaction of benzoin with ammonium thiocyanate and phenylthiourea, respectively. Reaction of 1 and 2 with chloroacetic acid and ethyl
Publikováno v:
ARKIVOC, Vol 2006, Iss 2, Pp 178-186 (2006)
Microwave (MW) irradiation activated the reaction of dimedone with aniline or p-chloroaniline in formic acid to give the acridine derivatives 2a and 2 b, respectively, which can be derivatized as the bisoximes 3 and bisphenylhydrazone 4. However, und
Publikováno v:
ARKIVOC, Vol 2005, Iss 15, Pp 97-104 (2005)
Reaction of 2-pyridylcarboxamidrazone with D-arabinose, D-xylose, D-galactose, D-glucose and D-mannose afforded the corresponding hydrazones in either the acyclic or cyclic structures depending on the nature of the sugar. Assignment of the sugar hydr