81168-90-3

Basic information

• Product Name: 9-bromonon-4-yne
• Synonyms: 9-bromonon-4-yne
• CAS NO: 81168-90-3
• Molecular Weight: 203.122
• Mol File: 81168-90-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 9-bromonon-4-yne(CAS DataBase Reference)
• NIST Chemistry Reference: 9-bromonon-4-yne(81168-90-3)
• EPA Substance Registry System: 9-bromonon-4-yne(81168-90-3)

Safety Data

• Hazardous Substances Data: 81168-90-3(Hazardous Substances Data)

Downstream Products

• 110-52-1 1,4-dibromo-butane 
• 1346653-43-7 (Z)-9-bromonon-4-ene 

Relevant articles and documents

Alkynyl halide compounds and alkenyl acetate compounds therefrom

The invention provides a novel method for the synthetic preparation of an ω-haloalkyne compound of the general formula R--C C--CH2)n X, in which X is a halogen atom, R is a monovalent hydrocarbon group and n is 4, 5 or 6, by the coupling reaction of a Grignard reagent RMgX' and an ω-halo-1-bromoalkyne compound of the formula X--CH2)n C C-Br. The ω-haloalkyne compound obtained in the above can be readily converted to the corresponding alkenyl acetate of the formula R--CH=CH--CH2)n OCOCH3 by first acetylating and then partially hydrogenating in the presence of a Lindlar catalyst. In particular, 7, 11-hexadecadienyl acetate, which is a sexual pheromone compound of a noxious insect, is obtained in the same route of synthesis starting with the Grignard reagent of a 1-halo-3-octene and 1, 8-dibromo-1-octyne.