12083-33-9 Usage
General Description
Tricarbonyl(O-toluidine)chromium is a chemical compound that consists of a chromium ion bound to three carbon monoxide molecules and one O-toluidine molecule. It is commonly used as a catalyst in organic synthesis reactions, particularly in the production of pharmaceuticals and agrochemicals. This complex is known for its ability to catalyze various reactions, including hydrogenation, isomerization, and carbonylation. It is also used in industrial processes for the production of fine chemicals and polymers. However, it is important to handle this compound with caution as chromium compounds can be toxic and carcinogenic if not properly managed.
Check Digit Verification of cas no
The CAS Registry Mumber 12083-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,0,8 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 12083-33:
(7*1)+(6*2)+(5*0)+(4*8)+(3*3)+(2*3)+(1*3)=69
69 % 10 = 9
So 12083-33-9 is a valid CAS Registry Number.
12083-33-9Relevant articles and documents
Diastereoselective Nucleophilic Additions to Imines attached to Tricarbonyl(arene)chromium Moieties
David, Dorothy M.,Kane-Maguire, Leon A. P.,Pyne, Stephen G.
, p. 289 - 296 (2007/10/02)
A range of imine complexes has been prepared which possess planar chirality associated with the attached tricarbonyl(1,2-disubstituted arene)chromium moiety.Nucleophilic addition to the imine group of these complexes occurs with high diastereoselectivity, providing an efficient route to the asymmetric synthesis of chiral amines.The stereochemical outcome of the additions may be rationalized in terms of a favoured conformer for the complexes, with nucleophilic attack occurring on the face of the imine anti to the sterically demanding Cr(CO)3 group.Related studies have also been carried out on imine complexes in which the chiral auxiliary is instead a carbon centre attached to the imine N atom.In these latter systems high diastereoselectivity was also observed, but was not superior to that achieved with the related free amines.
