Synthesis of a novel tetracyclic heterocycle: 1-carboxy-13-oxo-[1,2,3]triazolo [1′,5′:4,3] [1,4]diazepino [6,7-c]chromane, using salicylaldehyde as a starting material
✍ Scribed by Az-eddine Kella-Bennani; Mohamed Soufiaoui; Abdelali Kerbal; Souad Fkih-Tetouani; Najib Bitit
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- French
- Weight
- 438 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0040-4020
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## Abstract A series of pyrazolo[4,3‐__e__]‐1,2,4‐triazolo‐[1,5‐__c__]pyrimidine derivatives, bearing phosphonylbenzyl chain in position 7, were conveniently synthesized in an attempt to obtain potent and selective antagonists for the A~2__A__~ adenosine receptor or potent pesticide lead compounds.
## Abstract A series of 1‐oxo‐2‐propyl‐4‐(substituted)phenylimino‐1,2,3,4,5,6,7,8‐octahydro‐[1,4,3]thiazaphosphorino[4,3‐a][1,3,2]benzodiazaphosphorine 3‐oxides (**__5a–g__**) has been synthesized in excellent yields via the reaction of 1‐(2‐bromoethyl)‐2,3‐dihydro‐3‐propyl‐1,3,2‐benzodiazaphosphor
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
The novel and versatile cyanomethyl 2amino-4-methylthiazolyl ketone (5) was prepared by treatment of bromomethyl 2-amino-4-methyl thiazolyl ketone (4) with potassium cyanide. Reaction of 5 with heterocyclic diazonium salts 6a,b and 10 afforded the corresponding hydrazones 7a,b and 11, respectively.