32266-22-1

Basic information

• Product Name: Benzene, 1,1',1''-(1-methyl-1-cyclopropanyl-2-ylidene)tris-
• CAS NO: 32266-22-1
• Molecular Formula: C22H20
• Molecular Weight: 284.401
• Mol File: 32266-22-1.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1',1''-(1-methyl-1-cyclopropanyl-2-ylidene)tris-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1',1''-(1-methyl-1-cyclopropanyl-2-ylidene)tris-(32266-22-1)
• EPA Substance Registry System: Benzene, 1,1',1''-(1-methyl-1-cyclopropanyl-2-ylidene)tris-(32266-22-1)

Safety Data

• Hazardous Substances Data: 32266-22-1(Hazardous Substances Data)

Upstream product

• 98-83-9 isopropenylbenzene 
• 908093-98-1 diazodiphenylmethane 
• 119-61-9 benzophenone 
• 5350-57-2 benzophenone hydrazone 
• 530-48-3 1,1-Diphenylethylene 
• 4545-21-5 acetophenone p-toluenesulfonylhydrazone 

Relevant articles and documents

Iron/N-doped graphene nano-structured catalysts for general cyclopropanation of olefins

The first examples of heterogeneous Fe-catalysed cyclopropanation reactions are presented. Pyrolysis of in situ-generated iron/phenanthroline complexes in the presence of a carbonaceous material leads to specific supported nanosized iron particles, which are effective catalysts for carbene transfer reactions. Using olefins as substrates, cyclopropanes are obtained in high yields and moderate diastereoselectivities. The developed protocol is scalable and the activity of the recycled catalyst after deactivation can be effectively restored using an oxidative reactivation protocol under mild conditions. This journal is

DIKETIMINATO CU(I) AND CO(I) CARBENE CATALYSTS, AND CYCLOPROPANATION METHODS USING THEM

The present invention described herein employs employs Cu(I) complexes of an electron-rich, bidentate N,N-donor ligand (P-diketiminates) that react with both heteroatomcontaining a-substituted diazomethanes and ary1diazomethanes to yield a unique metal-carbene complex stabilized by two metal fragments that selectively reacts with alkenes. These examples are the first of isolable Cu-carbene complexes that react with alkenes to give cyclopropanes. Furthermore, electron-rich, bidentate N,N-donor ligands can be designed to impart stereo- and enantio-selectivity in the cyclopropanation of alkenes with diazoalkanes.

Half-sandwich ruthenium(II) complexes of aminophosphines: Synthesis, structures and catalytic applications in C-C coupling reactions between styrenes and diphenyldiazomethane

The half-sandwich Ru(II) complexes of the type [CpRu(PPh2 N(H)R)(PPh3)Cl], [CpRu(PPh2N(H)R)2Cl] (R=Ph, C6H11) and [CpRu(PPh2N(R′) PPh2-κP,κP)(PPh3)]Cl (R′=Et, nPr, iPr, nBu), were synthesized and the structures of complexes [CpRu(PPh2N(H)Ph)(PPh3) Cl] and [CpRu(PPh2N(H)Ph)2Cl] were confirmed by single crystal X-ray diffraction studies. All ruthenium complexes were employed in the cyclopropanation reaction of styrene derivatives in the presence of diphenyldiazomethane. All complexes afford 1,1,3,3-tetraphenyl cyclobutane along with cyclopropane derivatives; complex, [CpRu(PPh2N(nBu)PPh2-κ P,κP) (PPh3)]Cl shows better selectivity in the formation of 1,1,2-triphenylcyclopropane. In all reactions appreciable amounts of cyclopropanation products and metathesis products, 1,2-diphenylcyclopropane and 1,1-diphenylethene were obtained along with 1,1,3-triphenylpropene derivatives. The variable temperature NMR studies have suggested that the cyclopropanation reactions in the presence of ionic complex, [CpRu(PPh2N(R′)PPh 2-κP,κP)(PPh3)]Cl proceeds via carbene intermediate, [CpRu(=CPh2)(PPh2N(R′) PPh2-κP)(PPh3)]Cl.