Abstract
The reaction of o-ethynylbenzoic acids hydrazides with base has been studied. In the presence of a strong donor substituent (1,5-dimethylpyrazol-4- yl) it has been found that an unusual cyclization route occurs to give the corresponding benzopyridazinone instead of the expected isoindolinone.
Original language | English |
---|---|
Pages (from-to) | 55-58 |
Number of pages | 4 |
Journal | Chemistry of Heterocyclic Compounds |
Volume | 45 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2009 |
Externally published | Yes |
Keywords
- Arylacetylenes
- Benzopyridazinones
- Cross coupling
- Ethynylbenzoic acids esters
- Heterocyclization
- Isoindolinones
- Reactions with hydrazine
ASJC Scopus subject areas
- Organic Chemistry