42461-65-4

Basic information

• Product Name: Benzene, (1-methyl-2-butenyl)-, (E)-
• CAS NO: 42461-65-4
• Molecular Formula: C11H14
• Molecular Weight: 146.232
• Mol File: 42461-65-4.mol
• Article Data: 11

Chemical Properties

• CAS DataBase Reference: Benzene, (1-methyl-2-butenyl)-, (E)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, (1-methyl-2-butenyl)-, (E)-(42461-65-4)
• EPA Substance Registry System: Benzene, (1-methyl-2-butenyl)-, (E)-(42461-65-4)

Safety Data

• Hazardous Substances Data: 42461-65-4(Hazardous Substances Data)

Upstream product

• 14806-37-2 (+/-)-4-phenoxy-pent-2t-ene 
• 16635-23-7 phenyltriisopropoxytitanium(IV) 
• 82045-04-3 (rac)-(E)-2-acetoxy-4-phenylbut-3-ene 
• 18610-33-8 (E)-4-chloropent-2-ene 
• 591-51-5 phenyllithium 
• 100-42-5 styrene 
• 187737-37-7 propene 
• 1569-50-2 3-penten-2-ol 
• 100-58-3 phenylmagnesium bromide 
• 98-85-1 1-Phenylethanol 
• 762-72-1 allyl-trimethyl-silane 
• 93-92-5 1-phenylethyl acetate 
• 10340-49-5 4-phenyl-1-pentene 
• 52755-39-2 (2E)-1-phenylbut-2-en-1-ol 

Downstream Products

• 36603-29-9 5-phenylhexanonitrile 

Relevant articles and documents

Visible-Light Controlled Divergent Catalysis Using a Bench-Stable Cobalt(I) Hydride Complex

While the use of visible light in conjunction with transition metal catalysis offers powerful opportunities to switch between on/-off states of catalytic activity, the next frontier would be the ability to switch the actual function of the catalyst and resulting products. Here we report such an example of multi-dimensional catalysis. Featuring an easily prepared, bench-stable cobalt(I) hydride complex in conjunction with pinacolborane, we can switch the reaction outcome between two widely employed transformations, olefin migration and hydroboration, with visible light as the trigger.

Double-Bond Isomerization: Highly Reactive Nickel Catalyst Applied in the Synthesis of the Pheromone (9 Z,12 Z)-Tetradeca-9,12-dienyl Acetate

A highly reactive nickel catalyst comprising NiCl2(dppp) or NiCl2(dppe) with zinc powder, ZnI2 and Ph2PH, was applied in the isomerization of terminal alkenes to Z-2-alkenes. The double-bond geometry of the 2-alkene can be controlled via the reaction temperature to yield the 2-Z-alkenes in excellent yields and high Z-selectivities. The formation of other constitutional isomers, such as 3-alkenes, is suppressed on the basis of the proposed mechanism via a 1,2-hydride shift from the metal to the Ph2P ligand. The nickel-catalyzed isomerization reaction was then applied in the synthesis of (9Z,12Z)-tetradeca-9,12-dienyl acetate, a pheromone with a 2Z,5Z-diene subunit.

Identification of a valuable kinetic process in copper-catalyzed asymmetric allylic alkylation

Copper bottomed: The application of a previously described process of dynamic kinetic asymmetric transformation to acyclic substrates allowed the identification of a relevant kinetic process in the title reaction (see scheme; CuTC= copper(I) thiophencarboxylate, Naphth= naphthyl). The optimization of the reaction conditions and generality of the method, as well as mechanistic considerations are disclosed.