95647-47-5

Upstream product

• 19078-72-9 bromo(phenyl)acetyl chloride 
• 95647-35-1 S-(1-phthalizinyl)-α-phenylthioglycolic acid 
• 4870-65-9 2-bromophenylacetic acid 
• 16015-46-6 1(2H)-phthalazinethione 
• 94392-53-7 anhydro-3-hydroxy-2-phenylthiazolo<2,3-a>phthalazin-4-ium hydroxide 
• 624-49-7 dimethylfumarate 

Relevant academic research and scientific papers

Annulation to the Phthalazine Ring System Utilizing Mesoionic Ring Systems

anhydro-3-Hydroxy-2-phenylthiazolophthalizinium hydroxide, prepared from 1(2H)-phthalazinethione and α-bromophenylacetyl chloride or by Ac2O/Et3N ring closure of S-(1-phthalazinyl)-α-phenylthioglycolic acid, and dimethyl acetylenedicarboxylate in r

Cycloaddition of Anhydro-3-hydroxy-2-phenylthiazoloquinazolin-4-ium Hydroxide with Olefinic Dipolarophiles

Anhydro-3-hydroxy-2-phenylthiazoloquinazolin-4-ium hydroxide (1) underwent cycloaddition with ethyl acrylate and dimethyl fumarate to give pyrroloquinazoline derivatives and COS, whereas with acetylenic dipolarophiles the anticipated