title: A facile and convenient synthesis of some novel hydrazones, Schiff's base and pyrazoles incorporating thieno[2,3-b]thiophenes.
abstract: A facile and convenient synthesis of some novel hydrazones, schiff's base and pyrazoles from thieno[2,3-b]thiophene derivatives 1 have been achieved in high yields assisted by microwave and classical methods. The structures of all the title compounds have been elucidated by elemental analysis, IR, MS, (1)H-NMR and (13)C-NMR. Generally, these findings represent a new class of sulfur and nitrogen moieties that should also be of interest as new materials.
authors.affiliation: Department of Chemistry, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; E-Mails:  amajid@ksu.edu.sa  (A.M.A.-M.);  zaothman@ksu.edu.sa  (Z.A.A.-O.);  alamary1401@yahoo.com  (A.S.A.).
authors.forename: Yahia Nasser
authors.initials: YN
authors.lastname: Mabkhot
authors.forename: Assem
authors.initials: A
authors.lastname: Barakat
authors.forename: Abdullah Mohammed
authors.initials: AM
authors.lastname: Al-Majid
authors.forename: Zeid Abdullah
authors.initials: ZA
authors.lastname: Al-Othman
authors.forename: Abdullah Saleh
authors.initials: AS
authors.lastname: Alamary
mesh_terms: D006835:Hydrazones / Q000138:chemical synthesis*; D009682:Magnetic Resonance Spectroscopy; D009584:Nitrogen / Q000737:chemistry; D011720:Pyrazoles / Q000138:chemical synthesis*; D013455:Sulfur / Q000737:chemistry; D013876:Thiophenes / Q000737:chemistry*
chemical_list: D006835:Hydrazones; D011720:Pyrazoles; D013876:Thiophenes; D013455:Sulfur; D009584:Nitrogen