Synthesis of functionalized benzothiophenes and dibenzothiophenes by twofold Heck and subsequent 6π-electrocyclization reactions of 2,3-dibromothiophenes and 2,3-dibromobenzothiophenes
Benzothiophenes and dibenzothiophenes were prepared by twofoldHeckreactions of 2,3-dibromothiophene and 2,3-dibromobenzothiophene, respectively, and subsequent thermal 6π-electrocyclization. The Heckreaction of 2,3-dibromothiophene and 2,3-dibromobenzothiophene with 1 equiv of alkenes proceeded with different regioselectivities and afforded 2-alkenylthiophenes and 3-alkenylbenzothiophenes.
Non-Peptide Cholecystokinin-B/Gastrin Receptor Antagonists Based on Bicyclic, Heteroaromatic Skeletons
作者:S. Barret Kalindjian、Ildiko M. Buck、Jonathan M. R. Davies、David J. Dunstone、Martin L. Hudson、Caroline M. R. Low、Iain M. McDonald、Michael J. Pether、Katherine I. M. Steel、Matthew J. Tozer、J. G. Vinter
DOI:10.1021/jm9508907
日期:1996.1.1
antagonists based on the dibenzobicyclo[2.2.2]octane (BCO) skeleton which have recently been described were found to show species-dependent behavior when examined in rat and dog models. We now report the discovery of compounds in which the BCO skeleton has been replaced with bicyclic, heteroaromatic frameworks, such as a 5,6-disubstituted indole or benzimidazole. These new ligands maintain the affinity and
The Heckreaction of 2,3-dibromothiophene afforded 2,3-di(alkenyl)thiophenes which were transformed into benzothiophenes by domino ′6π-electrocyclization/dehydrogenation′ reactions.
COMPOUND AND PHOTOELECTRIC DEVICE, IMAGE SENSOR AND ELECTRONIC DEVICE INCLUDING THE SAME
申请人:Samsung Electronics Co., Ltd.
公开号:EP3252051A1
公开(公告)日:2017-12-06
A compound represented by Chemical Formula 1, and a photoelectric device, an image sensor, and an electronic device including the same are disclosed.
In Chemical Formula 1, each substituent is the same as defined in the detailed description.