20657-32-3

Basic information

• Product Name: cis-3,3'-dimethylstilbene
• Synonyms: cis-3,3'-dimethylstilbene
• CAS NO: 20657-32-3
• Molecular Weight: 208.303
• Mol File: 20657-32-3.mol
• Article Data: 10

Chemical Properties

• CAS DataBase Reference: cis-3,3'-dimethylstilbene(CAS DataBase Reference)
• NIST Chemistry Reference: cis-3,3'-dimethylstilbene(20657-32-3)
• EPA Substance Registry System: cis-3,3'-dimethylstilbene(20657-32-3)

Safety Data

• Hazardous Substances Data: 20657-32-3(Hazardous Substances Data)

Upstream product

• 620-19-9 1-chloromethyl-3-methyl-benzene 
• 35286-92-1 (E)-3,3'-dimethylstilbene 
• 2765-16-4 bis(3-methylphenyl)acetylene 
• 201230-82-2 carbon monoxide 
• 40154-67-4 m-tolyldiazomethane 
• 99-36-5 1-methoxycarbonyl-3-methylbenzene 
• 620-23-5 m-tolyl aldehyde 
• 1711-06-4 3-Methylbenzoyl chloride 
• 53531-68-3 (3-methylphenyl)methanesulfonyl chloride 

Downstream Products

• 817160-48-8 cis-2,3-di-m-tolyloxirane 
• 35286-92-1 (E)-3,3'-dimethylstilbene 

Relevant articles and documents

Photocatalyst-free visible light promoted: E → Z isomerization of alkenes

A simple and green method of visible light driven photocatalytic E to Z isomerization of alkenes has been developed. A variety of (Z)-alkenes can be prepared in the presence of visible light, without any additional photocatalyst. This protocol features photocatalyst-free conditions, which are mild, tolerant, and operationally simple, and is easy to implement.

Immobilization and continuous recycling of photoredox catalysts in ionic liquids for applications in batch reactions and flow systems: Catalytic alkene isomerization by using visible light

A catalytic (E)- to (Z)-isomerization of olefins using a photoredox catalyst under mild reaction conditions is presented. A variety of (Z)-alkenes can be prepared in the presence of visible light. A new reaction system allows an easy and efficient scale-up, as well as a continuous flow process in which the photocatalyst is immobilized in an ionic liquid and continuously recycled by simple phase separation. Catalytic (E)- to (Z)-isomerizations of olefins under mild conditions can be achieved by use of a photosensitizer and visible light. A new reaction system such as depicted allows an easy and efficient scale-up, as well as continuous flow processes in which the photocatalyst is immobilized in an ionic liquid and continuously recycled by phase separation.

Rhodium-catalyzed hydroformylation of alkynes employing a self-assembling ligand system

Hydroformylation of alkynes is an underdeveloped atom-economic and redox-neutral method to prepare enals. Applying a new electron poor self-assembling ligand system provides the first general rhodium-catalyst for the chemo- and stereoselective hydroformylation of dialkyl- as well as diaryl-substituted alkynes to furnish enals in excellent chemo- and stereoselectivity.