965-20-8Relevant academic research and scientific papers
Steric control of mesocate and helicate formation: Bulky pyrrol-2-yl Schiff base complexes of Zn2+
Gorden, A. E. V.,Gorden, J. D.,Hiti, E. A.,Mayhugh, J. T.,Niklas, J. E.,Wilkinson, G. R.
supporting information, (2022/01/14)
Regioisomerism about a phenyl spacer alters the number of nuclei which participate in self-assembly with pyrrole/schiff base ditopic ligands. The bulky benzyl ester substituents favor formation of di- and tetranuclear (but not trinuclear) complexes. The r
Pyrrophens: Pyrrole-Based Hexadentate Ligands Tailor-Made for Uranyl (UO22+) Coordination and Molecular Recognition
Forbes, Madeleine G.,Gorden, Anne E. V.,Gorden, John D.,Mayhugh, Jacob T.,Niklas, Julie E.
, (2020/07/14)
Derivatives of a novel pyrrole-containing Schiff base ligand system (called "pyrrophen") are presented which feature substituted phenylene linkers (R1 = R2 = H (H2L1); R1 = R2 = CH3 (H2L2)) and a binding pocket modeled after macrocyclic species. These lig
A convenient synthetic route to the bacteriochlorin chromophore
Yon-Hin,Wijesekera,Dolphin
, p. 2875 - 2878 (2007/10/02)
The reactions of an A,C-divinylporphyrin with activated dienophiles yield stable bis Diels-Alder adducts absorbing light at wavelengths above 735 nm. This provides a convenient general route to bacteriochlorin-like chromophores.
REACTION ON SOLID SUPPORT PART V: THE MECHANISM OF OXIDATION OF α-METHYLPYRROLES TO α-FORMYLPYRROLES BY TALLIUM NITRATE ON CLAY
Jackson, Anthony H.,Nagaraja Rao, K. R.,Smeaton, Elizabeth
, p. 2673 - 2676 (2007/10/02)
Evidence is presented to show that the clay-catalyzed thallium nitrate oxidation of α-methylpyrroles to α-formylpyrroles involves formation of an intermediate nitrate ester which subsequently undergoes elimination of nitrite.
5-Unsubstituted 2-Pyrrolecarboxaldehydes for Porphyrin Synthesis and the Cyanovinyl Protecting Group
Paine, John B.,Dolphin, David
, p. 2787 - 2795 (2007/10/02)
(Cyanovinyl)pyrroles (13) derived from the Knoevenagel condensation of benzyl 5-formyl-2-pyrrolecarboxylates (12) with methyl cyanoacetate were employed in a facile sequence of four steps to produce, regioselectively, 5-unsubstituted 2-pyrrolecarboxaldehy
Stereochemical Studies on Porphyrin a: Assignment of the Absolute Configuration of a Model Porphyrin by Degradation
Battersby, Alan R.,Cardwell, Kevin S.,Leeper, Finian J.
, p. 1565 - 1580 (2007/10/02)
The synthesis is described of a porphyrin alcohol (22) which has a structure very similar to that of porphyrin a (2).The model porphyrin was resolved by separation of its camphanate esters.Ozonolysis of the 2-nitrobenzoate of each enantiomer in tritiated form gave a derivative of 2-hydroxypentadioic acid whose configuration was determined by dilution analysis.It is demonstrated that correlation of the stereochemistry of porphyrin a with that of the model (22) will be possible by means of the (1)H and (19)F n.m.r. spectra of the corresponding esters with (-)-3,3,3-trifluoro-2-methoxy-2-phenylpropanoic acid.
Novel Porphyrins from Copper(II)-Mediated Cyclizations of 1',8'-Dimethyl-a,c-biladiene Salts: Mechanism of the Cyclization Reaction
Smith, Kevin M.,Minnetian, Ohannes M.
, p. 2073 - 2080 (2007/10/02)
Copper(II)-mediated cyclizations of the 1',8'-dimethyl-a,c-biladiene 8 under various conditions afford the expected porphyrin 7, along with γ-methyl- (9), γ-(dialkylamino)- (10 and 11), 6-formyl- (12), and γ-formylporphyrins (13).Carbon-13-enriched a,c-bi
An Improved Preparation of 2-Pyrrolecarbaldehydes from 2-Methylpyrroles
Montforts, Franz-Peter,Schwartz, Ulrich M.
, p. 2301 - 2303 (2007/10/02)
Reaction of 2-methylpyrroles with lead(IV) acetate in chloroform affords 2-pyrrolecarbaldehydes with improved yields.Namely the yields of pyrrolecarbaldehydes with unsubstituted ring positions are increased efficiently.
REACTIONS ON SOLID SUPPORTS PART I: NOVEL PREPARATION OF α-FORMYL PYRROLES FROM α-METHYLPYRROLES BY OXIDATION WITH THALLIUM (III) NITRATE ON CLAY
Jackson, Anthony H.,Rao, K.R. Nagaraja,Ooi, N. Sim,Adelakun, Esther
, p. 6049 - 6050 (2007/10/02)
Treatment of α-methylpyrroles with thallium (III) nitrate/Montmorillonite clay affords the corresponding α-formylpyrroles in excellent yields.
