1407965-77-8

Basic information

• Product Name: C₅₅H₇₆N₃Sc
• CAS NO: 1407965-77-8
• Molecular Weight: 824.184
• Mol File: 1407965-77-8.mol

Chemical Properties

• CAS DataBase Reference: C₅₅H₇₆N₃Sc(CAS DataBase Reference)
• NIST Chemistry Reference: C₅₅H₇₆N₃Sc(1407965-77-8)
• EPA Substance Registry System: C₅₅H₇₆N₃Sc(1407965-77-8)

Safety Data

• Hazardous Substances Data: 1407965-77-8(Hazardous Substances Data)

Upstream product

• 691888-02-5 [(2,6-diisopropylphenyl)NC(t-Bu)CHC(t-Bu)N(2,6-diisopropylphenyl)]Sc(Me)(NH-2,6-diisopropylphenyl) 
• 1407965-80-3 C₅₄H₈₀N₅Sc 
• 536-74-3 phenylacetylene 
• 691888-00-3 [(((CH₃)2CH)2C₆H₃NC(C(CH₃)3)CHC(C(CH₃)3)NC₆H₃(CH(CH₃)2)2)ScCl(NHC₆H₃(CH(CH₃)2)2)] 
• 4440-01-1 lithium phenylacetylide 
• 241165-09-3 [(2,6-(i-Pr)2C₆H₃NC(t-Bu)CHC(t-Bu)N-2,6-(i-Pr)2C₆H₃)ScCl₂] 
• 24544-04-5 2,6-diisopropylbenzenamine 
• 1407965-75-6 C₄₇H₇₀N₃Sc 

Relevant articles and documents

Synthesis and reactivity of a terminal scandium imido complex

Preparation of a terminal scandium imido complex, 2·DMAP, was accomplished through thermolysis of an arylamido methyl complex, 1, stabilized by a bulky β-diketiminato ligand in the presence of 4-N,N- dimethylaminopyridine (DMAP). Mechanistic studies revealed that the reaction proceeds by initial metalation of 1, followed by rapid DMAP-promoted alkane elimination to generate the scandium imido complex. Kinetic studies of the reaction between separately synthesized metalate 3 and DMAP under pseudo-first-order conditions yielded activation parameters of ΔH a = 73.5(2) kJ mol-1 and ΔS a = -70.4(5) J K-1 mol-1. The reaction of 2·DMAP with tert-butyl amine or phenylacetylene resulted in addition of the N-H or C-H bond across the scandium imide linkage, respectively, to furnish complexes endo-/exo-4 and endo-5. These compounds were fully characterized, including via structural analysis, providing further evidence for the terminal scandium imido derivative 2·DMAP.