Title of article :
Synthesis of functionalized benzothiophenes and dibenzothiophenes by twofold Heck and subsequent 6π-electrocyclization reactions of 2,3-dibromothiophenes and 2,3-dibromobenzothiophenes
Author/Authors :
Serge-Mithérand Tengho Toguem، نويسنده , , Imran Malik، نويسنده , , Munawar Hussain Chaudhary، نويسنده , , Jamshed Iqbal، نويسنده , , Alexander Villinger، نويسنده , , Peter Langer، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2013
Abstract :
Benzothiophenes and dibenzothiophenes were prepared by twofold Heck reactions of 2,3-dibromothiophene and 2,3-dibromobenzothiophene, respectively, and subsequent thermal 6π-electrocyclization. The Heck reaction of 2,3-dibromothiophene and 2,3-dibromobenzothiophene with 1 equiv of alkenes proceeded with different regioselectivities and afforded 2-alkenylthiophenes and 3-alkenylbenzothiophenes.
Keywords :
Heck reaction , Catalysis , Cyclization , Palladium , Heterocycles
Journal title :
Tetrahedron
Journal title :
Tetrahedron
