502848-71-7

Basic information

• Product Name: Benzene, 2-ethenyl-1-(1-Methylethoxy)-4-nitro-
• Synonyms: Benzene, 2-ethenyl-1-(1-Methylethoxy)-4-nitro-
• CAS NO: 502848-71-7
• Molecular Formula: C₁₁H₁₃NO₃
• Molecular Weight: 207.22582
• Mol File: 502848-71-7.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Benzene, 2-ethenyl-1-(1-Methylethoxy)-4-nitro-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 2-ethenyl-1-(1-Methylethoxy)-4-nitro-(502848-71-7)
• EPA Substance Registry System: Benzene, 2-ethenyl-1-(1-Methylethoxy)-4-nitro-(502848-71-7)

Safety Data

• Hazardous Substances Data: 502848-71-7(Hazardous Substances Data)

Upstream product

• 1779-49-3 Methyltriphenylphosphonium bromide 
• 166263-27-0 2-isopropoxy-5-nitro-benzaldehyde 
• 97-51-8 5-Nitrosalicylaldehyde 
• 22921-58-0 2-isopropoxybenzaldehyde 
• 90-02-8 salicylaldehyde 

Downstream Products

• 921194-46-9 4-isopropoxy-3-vinylaniline 

Relevant articles and documents

Remarkable Ability of the Benzylidene Ligand To Control Initiation of Hoveyda–Grubbs Metathesis Catalysts

The structure of the chelating benzylidene ligand offers the unique ability to control the initiation of Hoveyda–Grubbs metathesis catalysts. Apart from steric and electronic effects acting on the step involving opening of the chelate ring, changes related to the following ligand-exchange process may also play a critical role. Our mechanistic model reveals that ligands substituted at the 6-position of the benzylidene ring enter the metathesis cycle in a nonoptimal chelating conformation, and thus the coordination number of the ruthenium center transiently increases to six (associative mechanism). In effect, the synthesis and initiation of the catalysts becomes difficult, and the energy barrier of the ligand-exchange process is controlled by the structure of the coordinating OR group. Moreover, we explain how isomeric naphthalene ligands affect the catalytic performance by an indivisible combination of steric and π-electron delocalization effects.

Ruthenium complexes as (pre)catalysts for metathesis reactions

The invention relates to new (pre)catalysts of ruthenium complexes of formula 1, 1 wherein L1, X, X′, R1, R2, R3 and n are defined herein. The novel ruthenium complexes of formula 1 are convenient (pre)catalysts for metathesis reactions and can be applied, e.g., for ring-closing metathesis, cross metathesis or ene-ine metathesis reactions. Another aspect of the invention are the novel intermediates of formula 2. 2

RUTHENIUM COMPLEXES AS (PRE)CATALYSTS FOR METATHESIS REACTIONS

The invention relates to new (pre)catalysts of ruthenium complexes of formula (I), wherein L1, X, X', R1, R2, R3 and n are defined herein. The novel ruthenium complexes of formula 1 are convenient (pre)catalysts