79439-38-6

Upstream product

• 98-88-4 benzoyl chloride 
• 129-64-6 3,6-endomethylene-1,2,3,6-tetrahydrophthalic anhydride 
• 14735-70-7 3-azatricyclo[4.2,1.0.(2,5)]non-7-en-4-one 
• 121-46-0 bicyclo[2.2.1]hepta-2,5-diene 
• 92511-32-5 3-exo-aminobicyclo[2.2.1]hept-5-ene-2-exo-carboxylic acid 
• 542-92-7 cyclopenta-1,3-diene 
• 88330-29-4 (1SR,2RS,3SR,4RS)-3-aminobicyclo[2.2.1]hept-5-ene-2-carboxylic acid 

Downstream Products

• 65133-31-5 2-phenyl-6H-1,3-oxazin-6-one 
• 91813-50-2 (1R,2R,7S,8S)-4-Phenyl-5-oxa-3-aza-tricyclo[6.2.1.0^2,7]undeca-3,9-dien-6-one 

Relevant academic research and scientific papers

STEREOCHEMICAL STUDIES -- 79 SYNTHESIS AND KINETIC STUDY ON THE RETRODIENE DECOMPOSITION OF NORBORNENE-CONDENSED 1,3-OXAZIN-4-ONES

The cis-exo-amino acid 3 with norbornene skeleton was converted into 2-aryl-cis-exo-1,3-oxazin-4-ones 5a-d.These compounds, similarly to the diendo isomers 1a-d studied by us earlier, undergo retrodiene decomposition under mild conditions to give 2-aryl-6

OPTICAL RESOLUTION OF 3-endo-BENZAMIDO-5-NORBORNENE-2-endo-CARBOXYLIC ACID AND ITS APPLICATION AS A NEW RESOLVING AGENT

3-endo-Benzamido-5-norbornene-2-endo-carboxylic acid was synthesized from 5-norbornene-2-endo 3-endo-dicarboxylic anhydride in one pot and easily resolved into a pair of optically active forms by preferential crystallization of its dibenzylamine salt.The optically active acid was successfully applied to the optical resolution of (+/-)-ephedrine as a new resolving agent.