960010-38-2

Upstream product

• 61285-25-4 3-bromo-2-methyl-5-phenylthiophene 
• 61285-28-7 3-iodo-2-methyl-5-phenylthiophene 
• 1010734-29-8 trimethyl(2-(2-methyl-5-phenylthiophen-3-yl)ethynyl)silane 

Downstream Products

• 960010-28-0 1,2-bis(5-phenyl-2-methylthiophen-3-yl)acetylene 
• 1300021-07-1 C₂₄H₂₄S₂ 
• 1369534-07-5 3-(but-3-en-1-ynyl)-2-methyl-5-phenylthiophene 

Relevant academic research and scientific papers

Synthesis and photoisomerization of diarylcyclobutenes

Symmetrically and unsymmetrically substituted diarylcyclobutenes are synthesized in 20-70% yields from alkyne precursors via cobalt-catalyzed [2+2] cycloadditions. The reactions proceed under mild conditions and provide access to differently substituted diarylethene derivatives. All the diarylcyclobutene products undergo reversible photoisomerization upon irradiation with UV/Vis light. The ring-closed isomers show different thermal stabilities towards reisomerization with half-lives ranging from 9 to 300 hours. Georg Thieme Verlag Stuttgart - New York.

Creating a reactive enediyne by using visible light: Photocontrol of the Bergman cyclization

(Chemical Equation Presented) Visible changes: Visible light is used to create an active enediyne for Bergman cyclization by taking advantage of a well-known molecular photoswitch. Only isomer 2 has the enediyne structure required to produce a diradical that can be trapped as compound 3. Isomer 2 is formed from the thermally stable isomer 1 by stimulating the ring-opening reaction with visible light.