𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis of meso-tetrakis(4-chlorocoumarin-3-yl)porphyrins

✍ Scribed by M. Amaravathi; B. Rajitha; M. Kanakalingeswara Rao; P. Sitadevi

Publisher
Journal of Heterocyclic Chemistry
Year
2007
Tongue
English
Weight
454 KB
Volume
44
Category
Article
ISSN
0022-152X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

magnified image

meso‐Tetrakis(4‐chlorocoumarin‐3‐yl)porphyrins were prepared by condensation of corresponding 4‐chlorocoumarin‐3‐carboxaldehydes and pyrrole in the presence of trifluoro acetic acid (TFA) in dichloromethane followed by oxidation with 2,3‐dichloro‐5,6‐dicyano‐1,4‐benzoquinone (DDQ). These porphyrins exhibited the atropisomerism due to ortho substituent of meso aryl groups. The atropisomers of meso‐tetrakis(4‐chloro‐6‐methylcoumarin‐3‐yl)porphyrin were separated and identified by ^1^H‐nmr spectra. Zinc complexes of these porphyrins were synthesized and characterized by ms, ^1^H nmr, ir and uv‐vis spectra.

📜 SIMILAR VOLUMES

Synthesis of new meso-tetrakis (glycosyl
Synthesis of new meso-tetrakis (glycosylated) porphyrins
✍ Ph. Maillard; C. Huel; M. Momenteau 📂 Article 📅 1992 🏛 Elsevier Science 🌐 French ⚖ 241 KB

## Absbwl: The synrhesis of a new family of meso-terrakis (glycosylated) porphyrins is reported. Uqfonunately. the porphyrins 4 and 5 bearing glycosykqvnethylene sabstituents are unstable.

Synthesis and Characterization of meso-T
Synthesis and Characterization of meso-Tetrakis- (p-methoxyphenyl)porphyrin Rare Earth Chloride
✍ Yu Miao; Liu Guo-Fa; Zhao Qi-Dong; Wang De-Jun; Jiang Xu 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 88 KB

## Abstract __meso__‐Tetrakis‐(__p__‐methoxyphenyl)porphyrin rare earth chlorides, Ln(TMOPP)Cl (Ln: Dy, Ho, Tm, Yb, Lu and H~2~TMOPP: tetrakis‐(__p__‐methoxyphenyl)porphyrin), were synthesized and characterized. Their composition, structure and properties were studied by elemental analyses, ultra‐v