189343-54-2

Basic information

• Product Name: 1-Benzotriazol-1-yl-1-phenoxy-nonan-2-one
• Synonyms: 1-Benzotriazol-1-yl-1-phenoxy-nonan-2-one
• CAS NO: 189343-54-2
• Molecular Weight: 351.448
• Mol File: 189343-54-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-Benzotriazol-1-yl-1-phenoxy-nonan-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Benzotriazol-1-yl-1-phenoxy-nonan-2-one(189343-54-2)
• EPA Substance Registry System: 1-Benzotriazol-1-yl-1-phenoxy-nonan-2-one(189343-54-2)

Safety Data

• Hazardous Substances Data: 189343-54-2(Hazardous Substances Data)

Upstream product

• 106-32-1 octanoic acid ethyl ester 
• 111198-02-8 1-(phenoxymethyl)-1H-benzo[d][1,2,3]triazole 

Downstream Products

• 189343-67-7 1-(benzotriazol-1-yl)-1-phenoxy-2-nonanone p-tosylhydrazone 
• 57718-18-0 non-1-yn-1-ylbenzene 
• 2384-70-5 dec-2-yne 

Relevant articles and documents

A Novel Transformation of Esters to Alkynes with 1-Substituted Benzotriazoles

Reactions of lithio benzotriazol-1-yl derivatives 2, 11, and 25 with aromatic and aliphatic esters 3, 12, and 26 gave α-(benzotriazol-l-yl) ketones 4, 13, and 27, respectively, in high yields. Alternatively, α-(benzotriazol-l-yl) ketones 22 can be accessed by the reaction of α-(benzotriazol-1-yl) esters 20 with Grignard reagents. Condensation of 4, 13, 22, and 27 with (p-toluenesulfonyl)hydrazine provided p-tosylhydrazones 5, 14, 21, and 28. Treatment of hydrazones 5, 21, and 28 with n-butyllithium in diethyl ether resulted in the elimination of the tosyl group, dinitrogen, and benzotriazolyl group to afford the corresponding acetylenes 9, 23, and 29 in good yields. When α-(benzotriazol-l-yl) 1-α-phenoxy hydrazones 14 were treated with methyllithium, n-butyllithium, or phenyllithium, alkynes 18 were obtained, in which phenoxy groups were replaced by the lithium reagents.