1345683-42-2

Basic information

• Product Name: 1-bromo-2-(4-ethylphenyl)acetylene
• Synonyms: 1-bromo-2-(4-ethylphenyl)acetylene
• CAS NO: 1345683-42-2
• Molecular Weight: 209.085
• Mol File: 1345683-42-2.mol
• Article Data: 16

Chemical Properties

• CAS DataBase Reference: 1-bromo-2-(4-ethylphenyl)acetylene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-bromo-2-(4-ethylphenyl)acetylene(1345683-42-2)
• EPA Substance Registry System: 1-bromo-2-(4-ethylphenyl)acetylene(1345683-42-2)

Safety Data

• Hazardous Substances Data: 1345683-42-2(Hazardous Substances Data)

Upstream product

• 25309-64-2 4-ethyl-1-iodobenzene 
• 40307-11-7 1-ethyl-4-ethynylbenzene 

Downstream Products

• 1315277-23-6 9-bromo-10-(4-ethylphenyl)bicyclo[6.2.0]dec-9-ene 
• 1415358-16-5 ((4-ethylphenyl)ethynyl)(phenyl)selane 
• 1415358-22-3 ((4-ethylphenyl)ethynyl)(phenyl)tellane 
• 1555862-39-9 (Z)-1-(2-bromo-1-chloropenta-1,4-dien-1-yl)-4-ethylbenzene 
• 1555862-61-7 (Z)-1-(1,2-dibromopenta-1,4-dien-1-yl)-4-ethylbenzene 
• 1402831-16-6 1-[4-(4-ethylphenyl)buta-1,3-diynyl]benzene 
• 62936-36-1 ethyl 2-(4-ethylphenyl)-2-oxoacetate 
• 22692-80-4 1-ethyl-4-(p-tolylethynyl)benzene 
• 160083-17-0 1-ethyl-4-((4-fluorophenyl)ethynyl)benzene 
• 29778-20-9 1-ethyl-4-(phenylethynyl)benzene 

Relevant articles and documents

Visible-Light-Promoted Formation of C—C and C—P Bonds Derived from Evolution of Bromoalkynes under Additive-Free Conditions: Synthesis of 1,1-Dibromo-1-en-3-ynes and Alkynylphosphine Oxides

The controllable achievement of C—C and C—P bond formations is developed via visible-light-promoted bromoalkyne dimerization or its further transformation with secondary phosphine oxides. The 1,1-dibromo-1-en-3-ynes are formed when bromoalkyne is exposed to visible-light. While alkynylphosphine oxides are generated when bromoalkynes are mixed with secondary phosphine oxides.

A Unified Approach for Divergent Synthesis of Heterocycles via TMSOTf-Catalyzed Formal [3+2] Cycloaddition of Electron-Rich Alkynes

We present a synthetic protocol for the construction of polysubstituted five-membered heterocycles via TMSOTf-catalyzed formal [3+2] cycloaddition of electron-rich alkynes, which features free from any metal, atom economy and water as the main by-product. Furthermore, alkenyl ether adduct has been verified as the key intermediate. Notably, by utilizing this approach, we can synthesize a broad range of polysubstituted furans, thiophenes and pyrroles, and extend this transformation to deliver fused-polyheterocycles. This reaction can be achieved on a gram scale and the corresponding products are intermediates for producing diverse potentially useful scaffolds. (Figure presented.).

Access to Benzoxazepines and Fully Substituted Indoles via HDDA Coupling

The HDDA-derived benzyne intermediate was captured by oxazolines based on the addition reaction of benzyne to the Ca?N double bond. Benzoxazepine derivatives, fused benzoxazepine derivatives, and fully substituted indoles are synthesized in one step. The reaction does not require any catalyst or additives. Possible reaction mechanisms are presented.