Tetrahedron p. 4407 - 4418 (1992)
Update date:2022-07-29
Topics: Ring-Opening Access to
Dell'Erba, Carlo
Mele, Andrea
Novi, Marino
Petrillo, Giovanni
Stagnaro, Paola
The optimized ring-opening reaction of 3,4-dinitrothiophene 1 with either primary or secondary amines leads to 1,4-bis(alkylamino)- and 1,4-bis(arylamino)- 2 or 1,4-bis(dialkylamino)-2,3-dinitro-1,3-butadienes 3 in satisfactory to excellent yields. While
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