Nucleophilic Additions of Sodium Alkoxides to 4,4-Dichloro-1,1-diphenyl-2-azabuta-1,3-diene

4,4-Bis(isopropylthio)-1,1-diphenyl-2-azabuta-1,3-diene Adducts with Cadmium(II), Mercury(II) and Copper(I) Iodides: Crystal, Molecular and Electronic Structures of d10 Transition Metal Chelate Complexes

“…Chemistry 2024, 6 67 The values of the four-coordinate geometry index τ4 [45] are 0.83 and 0.71, and those The values of the four-coordinate geometry index τ4 [45] are 0.83 and 0.71, and those of τ4′ [46] are equal to 0.81 and 0.66 for 1 and 2, respectively. For the Cd complex 1, these (a) Iodine atom on the major site of occupancy equal to 0.93(1) (see experimental section).…”

“…In contrast to the plethora of 1,4-diazabutadien (α-diimine) complexes [1-3], 2-azabutadienes R 2 C=C(H)-N=CR ′ 2 (R, R ′ = Hal, alkyl, aryl) featuring a π-conjugated C=C(H)-N=C array are far less common as ligands in coordination chemistry [4]. We have developed an access to π-conjugated Cl 2 C=C(H)-N=CAr 2 via 1,3-dipolar cycloaddition and demonstrated that the chlorine atoms therein can be readily substituted with alcoholates, amides and thiolates [5][6][7][8][9]. The latter ditopic thioether-functionalized 2-azabutadienes (RS) 2 C=C(H)-N=CAr 2 in turn represent versatile ligands in coordination chemistry, since they dispose of both a harder imine-type N-donor site and a soft S-thioether site, allowing a chelating coordination on various transition metal centers.…”

Crystal structure of 4,4-dibromo-1-(3,4-dimethoxyphenyl)-2-azabuta-1,3-diene-1-carbonitrile

“…In the context of our interest in developing novel -conjugated dithioether compounds as ligands for coordination chemistry and further organic transformations, we have reported on the synthesis and crystal structure of 4,4-dichloro-1,1-diphenyl-2-azabuta-1,3-diene [Ph 2 C N-C(H) CCl 2 ] and its conversion to [Ph 2 C N-C(H) C(SR) 2 ] and [Ph 2 C N-C(H) C(OPh) 2 ] by reaction with thiolates NaSR or NaOPh, respectively (Jacquot et al, 1999(Jacquot et al, , 2000Jacquot-Rousseau et al, 2006;Kinghat et al, 2016). Several crystal structures of these molecules/ligands and their derived transition metal complexes reveal that despite the overall planarity of the -conjugated chain, one aryl group of the -N CPh 2 imine segment is tilted with respect to the azabutadienic array (Jacquot et al, 1999;Knorr et al, 2003;Kinghat et al, 2008).…”

4,4-Bis(4-methylphenylsulfanyl)-1,1-diphenyl-2-azabuta-1,3-diene

“…Some related structures of alkoxo- (Jacquot et al, 2000), cyano- (Jacquot-Rousseau et al, 2002) and i PrS-substituted (Jacquot-Rousseau et al, 2005) 4,4-dichloro-1,1-diphenyl-2azabuta-1,3-dienes (Jacquot et al, 1999) have been reported. For related literature, see: Tanimoto et al (1976); Truce & Boudakian (1956).…”