Syntheses of Carbaporphyrinoid Systems Using a Carbatripyrrin Methodology
摘要:
A carbatripyrrin intermediate was prepared from commercially available technical-grade indene and 2-pyrrolecarbaldehyde in three steps and 50% overall yield. This novel conjugated structure reacted with pyrroledialdehydes and 2,5-furandicarbaldehyde in the presence of TFA to give good yields of carbaporphyrins and an oxacarbaporphyrin, respectively, and unlike currently available methodologies, no oxidation step was required. The carbatripyrrin also condensed with heterocyclic dicarbinols in the presence of BF3 center dot Et2O to give a series of heterocarbaporphyrins.
A new methylene-bridged ligand incorporating both indenyl and pyrrolyl moieties, (C9H7)CH2(α-C4H3NH) (1), was prepared. Reaction of LnI2 with 1 equiv of [(C9H6)CH2(α-C4H3N)]Li2(THF)x in THF, followed by recrystallization in DME, gave the organolanthanide(II) complexes (η5-C9H6)CH2[μ-η1:η5-(α-C4H3N)]Ln(DME)}2 (Ln = Sm (2), Yb (3)) in mederate yields. Treatment of SmCl3 with 1 equiv of [(C9H6)CH2(α-C4H3N)]Li2(THF)x
合并两个茚基和吡咯基部分A的新亚甲基桥连的配位体,(C 9 H ^ 7)CH 2(α-C 4 H ^ 3 NH)(1)中的溶液制备。LNI的反应2与1个当量的[(C 9 H ^ 6)CH 2(α-C 4 H ^ 3 N)]李2(THF)X在THF中,随后在DME中重结晶,得到金属有机(II)复合物 (η 5 -C 9 ħ 6)CH 2 [μ-η 1:η 5 - (α-C 4 ħ3 N)] Ln(DME)} 2(Ln = Sm(2),Yb(3))。SMCL的治疗3与1个当量的[(C 9 H ^ 6)CH 2(α-C 4 H ^ 3 N)]李2(THF)X的THF,得到的三价有机钐氯化物(η 5 -C 9 ħ 6) CH 2 [μ-η 1:η 5 - (α-C 4 H ^ 3 N)]的Sm(μ-Cl)的2立(THF)2 } 2(4)在73%的产率,而ErCl的反应3与[(C 9 H ^ 6)CH
Syntheses of Carbaporphyrinoid Systems Using a Carbatripyrrin Methodology
作者:Leah M. Stateman、Timothy D. Lash
DOI:10.1021/acs.orglett.5b02219
日期:2015.9.18
A carbatripyrrin intermediate was prepared from commercially available technical-grade indene and 2-pyrrolecarbaldehyde in three steps and 50% overall yield. This novel conjugated structure reacted with pyrroledialdehydes and 2,5-furandicarbaldehyde in the presence of TFA to give good yields of carbaporphyrins and an oxacarbaporphyrin, respectively, and unlike currently available methodologies, no oxidation step was required. The carbatripyrrin also condensed with heterocyclic dicarbinols in the presence of BF3 center dot Et2O to give a series of heterocarbaporphyrins.
Telluracarbaporphyrins and a Related Palladium(II) Complex: Evidence for Hypervalent Interactions
作者:Timothy D. Lash、Deyaa I. AbuSalim、Gregory M. Ferrence
DOI:10.1021/acs.inorgchem.1c01039
日期:2021.7.5
characteristics, it is prone to air oxidation, giving rise to a hydroxy derivative that was characterized by X-ray crystallography. The initial telluracarbaporphyrin reacted with palladium(II) acetate to give a stable organometallic complex, and X-ray crystallography showed that the palladium cation was coordinated to all four atoms in the CNTeN core. An oxacarbatripyrrin was also reacted with a tellurophene dialcohol