176543-10-5

Basic information

• Product Name: Benzene, 1-(ethynylseleno)-4-methyl-
• CAS NO: 176543-10-5
• Molecular Formula: C9H8Se
• Molecular Weight: 195.123
• Mol File: 176543-10-5.mol

Chemical Properties

• CAS DataBase Reference: Benzene, 1-(ethynylseleno)-4-methyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-(ethynylseleno)-4-methyl-(176543-10-5)
• EPA Substance Registry System: Benzene, 1-(ethynylseleno)-4-methyl-(176543-10-5)

Safety Data

• Hazardous Substances Data: 176543-10-5(Hazardous Substances Data)

Upstream product

• 21856-94-0 di-p-tolyl diselenide 
• 1066-26-8 sodium acetylide 

Downstream Products

• 180906-68-7 (E,E)-4-phenyl-1-(4-methylphenylseleno)-1,3-butadiene 
• 176543-05-8 1-((E)-2-Bromo-vinylselanyl)-4-methyl-benzene 
• 176543-08-1 1-((E)-2-Iodo-vinylselanyl)-4-methyl-benzene 
• 183056-31-7 (E)-(styryl)(4-methyl-phenyl)selenide 

Relevant articles and documents

Stereoselective synthesis of (E,E)-1-arylselenobutadienes by cross- coupling reactions in the presence of palladium catalyst

Hydrozirconation of arylselenoethynes 1 gives selenium containing zirconium(IV) complexes 2, which are cross coupled with alkenyl halides in the presence of Pd (PPh3)4 to afford (E,E)-1-arylselenobutadienes 4 in high yields.

Synthesis of 4-arylselanyl-1h-1,2,3-triazoles from selenium-containing carbinols

In this work, we present a simple way to achieve 4-arylselanyl-1H-1,2,3-triazoles from selenium-containing carbinols in a one-pot strategy. The selenium-containing carbinols were used as starting materials to produce a range of selanyl-triazoles in moderate to good yields, including a quinoline and Zidovudine derivatives. One-pot protocols are crucial to the current concerns about waste production and solvent consumption, avoiding the isolation and purification steps of the reactive terminal selanylalkynes. We could also isolate an interesting and unprecedented by-product with one alkynylselenium moiety connected to the triazole.

Synthesis of Terminal Ethynyl Aryl Selenides and Sulfides Based on the Retro-Favorskii Reaction of Hydroxypropargyl Precursors

The retro-Favorskii reaction is an excellent way to achieve terminal alkynes. Methodologies that connect the synthesis of terminal alkynes and organochalcogen motifs are important for the construction of novel compounds. Fourteen new terminal alkynes containing either Csp?S or Csp?Se bonds were selectively prepared through the retro-Favorskii reaction from the respective carbinol precursors. It was discovered that terminal chalcogen alkynes were stable for weeks if stored as a solution in hexanes.