title: Ultrasound assisted one-pot, three-components synthesis of pyrimido[1,2-a]benzimidazoles and pyrazolo[3,4-b]pyridines: A new access via phenylsulfone synthon.
abstract: A simple, facile, efficient and three-components procedure for the synthesis of pyrimido[1,2-a]benzimidazoles and pyrazolo[3,4-b]pyridines utilizing phenylsulfone synthon, under ultrasonic irradiation was developed.
authors: Green Chemistry Department, National Research Centre, Dokki, Cairo 12622, Egypt. tamsaid@yahoo.com
authors: Tamer S
authors: TS
authors: Saleh
authors: Taha M A
authors: TM
authors: Eldebss
authors: Hassan M
authors: HM
authors: Albishri
mesh_terms: D001562:Benzimidazoles / Q000138:chemical synthesis* / Q000737:chemistry; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D015394:Molecular Structure; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000737:chemistry; D011725:Pyridines / Q000138:chemical synthesis* / Q000737:chemistry; D011743:Pyrimidines / Q000138:chemical synthesis* / Q000737:chemistry; D013237:Stereoisomerism; D013450:Sulfones / Q000138:chemical synthesis* / Q000737:chemistry; D014465:Ultrasonics
chemical_list: D001562:Benzimidazoles; D011720:Pyrazoles; D011725:Pyridines; D011743:Pyrimidines; D013450:Sulfones; C447480:pyrazolo(3,4-b)pyridine