131802-11-4

Upstream product

• 103794-87-2 tri-tert-butylazete 
• 96845-71-5 tert-Butyl-dimethyl-phenylethynyloxy-silane 

Downstream Products

• 132911-02-5 1,3,5-Tri-tert-butyl-exo-6-phenyl-2-azabicyclo<3.1.0>hex-2-en-4-one 
• 132911-01-4 2,3,4-Tri-tert-butyl-endo-6-phenyl-1-azabicyclo<2.2.0>hex-2-en-5-one 

Relevant academic research and scientific papers

Cycloadditions of Alkynyl Esters and Ethers with 1,2,3-Tri-t-butyl Azete

Moderately electron-rich alkynes, such as alkynyl carboxylates 2a, b, siloxyalkynes 2c, d, an alkynyl p-toluenesulphonate 2e, and ethoxyacetylene 2f, add exclusively to the C=N bond of the kinetically stabilized azete 1; with terminal alkynes 2a, f, a mixture of the regioisomeric 1-Dewar-pyridines 3 and 4 is obtained, whereas addition of internal alkynes results only in 3-oxy-1-Dewar-pyridines 3.