Unexpected ring opening of pyrazolines with activated alkynes: Synthesis of 1H-pyrazole-4,5-dicarboxylates and chromenopyrazolecarboxylates
1H-Pyrazole-4,5-dicarboxylates and chromenopyrazole carboxylates were prepared by reacting pyrazolines with activated alkynes under neat conditions without catalyst. The products were formed via unexpected ring opening of pyrazolines with the elimination...
Keyword(s):
2019 ◽
Keyword(s):
2020 ◽
2018 ◽
Keyword(s):