259129-33-4

Basic information

• Product Name: 1-bromo-1,5-heptadien-3-yne
• Synonyms: 1-bromo-1,5-heptadien-3-yne
• CAS NO: 259129-33-4
• Molecular Weight: 171.037
• Mol File: 259129-33-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-bromo-1,5-heptadien-3-yne(CAS DataBase Reference)
• NIST Chemistry Reference: 1-bromo-1,5-heptadien-3-yne(259129-33-4)
• EPA Substance Registry System: 1-bromo-1,5-heptadien-3-yne(259129-33-4)

Safety Data

• Hazardous Substances Data: 259129-33-4(Hazardous Substances Data)

Upstream product

• 590-15-8 trans-2-propenyl bromide 
• 56798-08-4 (E)-1-bromo-2-iodoethylene 
• 4301-14-8 acetylenemagnesium bromide 

Downstream Products

• 13641-39-9 (2E)-7-phenyl-2-hepten-4,6-diyne 

Relevant articles and documents

A strictly "pair"-selective synthesis of conjugated diynes via Pd-catalyzed cross coupling of 1,3-diynylzincs: A superior alternative to the Cadiot-Chodkiewicz reaction

(matrix presented) A strictly "pair"-selective synthesis of conjugated diynes via Pd-catalyzed cross coupling of 1,3-diynylzincs is described. This method, like the Cadiot-Chodkiewicz reaction, requires three steps for the synthesis of R1C≡CC≡CR2 from R1C≡CH, R2X, and HC≡CH. However, the high "pair"-selectivity permitting high-yield production of the desired conjugated diynes without separation of symmetrical diynes promises to make the present protocol superior to the Cadiot-Chodkiewicz reaction in many cases.