35797-14-9

Upstream product

• 306-37-6 N,N'-Dimethylhydrazine dihydrochloride 
• 27436-93-7 pentacarbonyl(1-methoxybenzylidene)chromium⁽⁰⁾ 
• 26160-57-6 pentacarbonyl(ethoxyphenylmethylene)chromium⁽⁰⁾ 
• 74-89-5 methylamine 

Downstream Products

• 121809-50-5 pentacarbonyl(DMAP)chromium 
• 122846-95-1 tetracarbonyl{(N-((2,2-dimethylethoxy)carbonyl)-N-methylamino)(phenyl)methylene-C,O}chromium 
• 121809-07-2 {(N-benzoyl-N-methylamino)phenylcarbene}pentacarbonylchromium⁽⁰⁾ 

Relevant academic research and scientific papers

Hydrazinolysis of Fischer-type oxacarbenes made efficient: A new and easy entry to alkyl and aryl hydrazinocarbene complexes

Hydrazinolysis of the pentacarbonyl[alkyl- or aryl-(methoxy)carbene] complexes of W0 and Cr0 with both 1,1- and 1,2-disubstituted hydrazines affords the corresponding new hydrazinocarbenes 15-18, 21 and 22, and the presence of LiCl in the reaction medium greatly increases their yields.

Behavior of group 6 fischer aminocarbene complexes in a supercharged medium: A single electron transfer-H atom transfer process

The ESI-MS study of the ionization of a series of aryl, alkenyl, and alkynyl (Fischer) aminocarbene complexes is described. The process requires the initial capture of one electron from the ESI source, followed by the transfer of a hydrogen atom to the additive (TTF or Cs2CO3). Regardless of their structure, both NH and N,N-disubstituted aminocarbenes can effectively ionize under ESI-MS conditions, as long as they have abstractable H atoms. Overall, the process can be envisaged as a single electron transfer-H atom transfer process. The experimental findings are supported by DFT calculations. The ESI-MS ionization of bis-alkynylaminocarbene complexes follows the same patterns. However, the [M - H]- ions evolve by arylacetylene extrusion together with the usual sequence of CO loss. The process requires the presence of a free NH group and occurs by intramolecular hydrogen transfer from the NH to the metal center. Bis-aminocarbenes having rigid tethers between the nitrogen atoms or lacking free NH groups do not produce this fragmentation.

Solution and solid state conformation of Fischer carbene complexes vis-à-vis conformation of aryl carboxamides: Complexation of the aromatic ring by tricarbonylchromium makes a difference

Crystallography and proton NMR spectroscopy were used to compare the conformations of aryl amino Fischer carbene complexes with structurally analogous aryl carboxamides. The similarity disappears when the aromatic rings were complexed with tricarbonylchro