Corrin Syntheses. Part VI: Corrin Synthesis via A→D Ring Closure. The Construction of A/D‐Secocorrin Chromophore Systems by the 'Sulfide Contraction' Method and the Photochemical A/B‐Secocorrin→Corrin Cycloisomerization1. Issue 11 (December 2015)

• Record Type: Journal Article
• Authors: Yamada, Yasuji; Wehrli, Pius; Miljkovic, Dusan; Wild, Hans‐Jakob; Bühler, Niklaus; Götschi, Erwin; Golding, Bernard; Löliger, Peter; Gleason, John; Pace, Brian; Ellis, Larry; Hunkeler, Walter; Schneider, Peter; Fuhrer, Walter; Nordmann, René; Srinivasachar, Kasturi; Keese, Reinhart; Müller, Klaus; Neier, Reinhard; Eschenmoser, Albert
• Is Part Of: Helvetica chimica acta. Volume 98:Issue 11/12(2015:Nov.)
• Page Start: 1921
• Page End: 2054
• Publication Date: 2015-12
• Subjects: Corrin synthesis -- Photochemistry -- Sulfide contraction -- A/D‐Secocorrin→corrin cycloisomerization -- Cycloisomerization; Chemistry -- Periodicals; Chemistry, Analytical -- periodicals; Chimie -- Périodiques; 540
• DOI: 10.1002/hlca.201500012
• Languages: English
• ISSNs: 0018-019X

Abstract

Abstract: As already extensively discussed in Part I of this series, the 'climax' of the studies at the ETH on the synthesis of corrins was reached with the conception and experimental realization of the corrin synthesis via a final ring closure between rings A and D by the photochemical A / D ‐secocorrin→corrin cycloisomerization. As it was the case for the ' old corrin synthesis ', described in Part IV of this series [4], the ' new synthesis ' was first explored in a model system, before it became the antetype of the photochemical variant of the synthesis of vitamin B12 .