## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
Expedient synthesis of corroles by oxidant-mediated, direct α-α′ coupling of tetrapyrromethanes
✍ Scribed by Jae-Won Ka; Won-Seob Cho; Chang-Hee Lee
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 85 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
Oxidant mediated coupling of tetrapyrromethanes resulted in the exclusive formation of meso-substituted corroles in more than 60% yields. The similar coupling reaction of 1,14-unsubstituted 16-oxatripyrromethane with 5-tolyldipyrromethane carried out in acetonitrile also gave expanded corroles as a single product. In both cases acid catalysts are not necessary for the direct a-a% coupling reaction.
📜 SIMILAR VOLUMES
The synthesis of α,α-difluorohomopropargyl alcohols containing an alkynyl silane moiety is reported. The title compound was prepared by the reaction of the organozinc derivative of TIPS-bromodifluoropropyne with aldehydes or ketones under mild conditions and in good yields.
A very mild, efficient and simple method for the synthesis of tertiary a-amino phosphonates is reported by reaction of an aldehyde, a secondary amine and trialkylphosphite in ethereal solution of lithium perchlorate, LPDE, at ambient temperature with high yields.
a,U-Dichloro-P-hydroxynitriles were conveniently synthesized by the reaction of trichloroacetonitrile with aldehydes mediated by tri-n-butylstibine in excellent yields. C4,o+Dichloro-fi -hydroxynitrile is rather inaccessible.2 Burton and coworkers