174970-85-5

Upstream product

• 13279-94-2 ethylmethoxyacetylene 
• 117688-09-2 P-chloro-N-(2,4,6-tri-tert-butylphenyl)-λ³-iminophosphine 

Downstream Products

• 174970-96-8 (1-{1-[1-Chloro-1-methoxy-meth-(Z)-ylidene]-propyl}-2-ethyl-3-methoxy-1H-1λ⁵-phosphiren-1-ylidene)-(2,4,6-tri-tert-butyl-phenyl)-amine 

Relevant academic research and scientific papers

Phosphirenes and Azaphosphetines. V. Formation of 1-Aza-2-phospha-1,3-butadienes in Reactions of Chloro(imino)phosphine with 1-Alkoxyalkynes. Synthesis of 1-Alkenyl-λ5-phosphirenes

Reactions of chloro(imino)phosphine with internal 1-alkoxyalkynes result in formation of stable 1-aza-2-phospha-1,3-butadienes.The latter react with alkynes under mild conditions to produce 1-alkenyl-λ5-phosphirenes in high yields, as well as take up water and hydrogen chloride at the P=N bond.With the terminal ethoxyacetylene, chloro(imino)phosphine gives an unstable product which readily isomerizes into 1,3-diazadiphosphetidine.