Synthesis of spirocyclic 4,5,5a,6,7,8-hexahydro-1H-pyrazolo[3,4-e]indolizine derivatives
✍ Scribed by Oleg S. Eltsov; Elisaveta V. D’yachenko; Tatiana V. Glukhareva; Yury Yu. Morzherin
- Book ID
- 111730569
- Publisher
- Royal Society of Chemistry
- Year
- 2005
- Tongue
- English
- Weight
- 95 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0959-9436
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📜 SIMILAR VOLUMES
Methyl-7-thiono-6,r-dihydro-5 H-dibenz[c, elmepin (3, R1= CH,) : 1,12 g (5 mmol) 6-Methyl-7-oxo-6,7-dihydro-5 H-dibenz[c,e]azepin werden rnit 2,22 g (5 mmol) P,S,, in 40 ml absolutem Pyridin zum Sieden erwarmt. Nach 5 h dosiert man weitere 0,5 g P4Sl0 in 5 ml absolutem Pyridin zu und hydrolysiert na
## Abstract The reaction of 5‐amino‐1‐phenylpyrazole‐4‐carbonitriles 1a‐c with dimethyl acetylenedicarboxylate in the presence of potassium carbonate in dimethyl sulfoxide gave trimethyl 4,5,5a,8‐tetrahydro‐1‐phenyl‐4,8‐dioxo‐1__H__‐pyrazolo[3,4‐__e__]indolizine‐5,5a,6‐tricarboxylate derivatives 3a