28294-36-2

Basic information

• Product Name: Benzene, 1-(2,2-diphenylcyclopropyl)-4-methoxy-
• CAS NO: 28294-36-2
• Molecular Formula: C22H20O
• Molecular Weight: 300.4
• Mol File: 28294-36-2.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: Benzene, 1-(2,2-diphenylcyclopropyl)-4-methoxy-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-(2,2-diphenylcyclopropyl)-4-methoxy-(28294-36-2)
• EPA Substance Registry System: Benzene, 1-(2,2-diphenylcyclopropyl)-4-methoxy-(28294-36-2)

Safety Data

• Hazardous Substances Data: 28294-36-2(Hazardous Substances Data)

Upstream product

• 119-61-9 benzophenone 
• 637-69-4 4-Methoxystyrene 
• 5350-57-2 benzophenone hydrazone 
• 100-42-5 styrene 
• 96010-02-5 benzophenone tosylhydrasone sodium salt 
• 908093-98-1 diazodiphenylmethane 
• 20359-74-4 (4-methoxyphenyl)phenyldiazomethane 
• 530-48-3 1,1-Diphenylethylene 
• 19350-72-2 N'-(4-methoxybenzylidene)-4-methylbenzenesulfonohydrazide 

Downstream Products

• 5670-78-0 ethyl diphenylmethyl ether 

Relevant articles and documents

Stable group 8 metal porphyrin mono- And bis(dialkylcarbene) complexes: Synthesis, characterization, and catalytic activity

Alkyl-substituted carbene (CHR or CR2, R = alkyl) complexes have been extensively studied for alkylcarbene (CHR) ligands coordinated with high-valent early transition metal ions (a.k.a. Schrock carbenes or alkylidenes), yet dialkylcarbene (CR2) complexes remain less developed with bis(dialkylcarbene) species being little (if at all) explored. Herein, several group 8 metal porphyrin dialkylcarbene complexes, including Fe- and Ru-mono(dialkylcarbene) complexes [M(Por)(Ad)] (1a,b, M = Fe, Por = porphyrinato dianion, Ad = 2-adamantylidene; 2a,b, M = Ru) and Os-bis(dialkylcarbene) complexes [Os(Por)(Ad)2] (3a-c), are synthesized and crystallographically characterized. Detailed investigations into their electronic structures reveal that these complexes are formally low-valent M(ii)-carbene in nature. These complexes display remarkable thermal stability and chemical inertness, which are rationalized by a synergistic effect of strong metal-carbene covalency, hyperconjugation, and a rigid diamondoid carbene skeleton. Various spectroscopic techniques and DFT calculations suggest that the dialkylcarbene Ad ligand is unique compared to other common carbene ligands as it acts as both a potent σ-donor and π-acceptor; its unique electronic and structural features, together with the steric effect of the porphyrin macrocycle, make its Fe porphyrin complex 1a an active and robust catalyst for intermolecular diarylcarbene transfer reactions including cyclopropanation (up to 90% yield) and X-H (X = S, N, O, C) insertion (up to 99% yield) reactions.

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.

Isolation and X-ray crystal structure of an unusual biscarbene metal complex and its reactivity toward cyclopropanation and allylic C-H insertion of unfunctionalized alkenes [1]

-