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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

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Publication date 2015
Author Yamada Yasuji, Wehrli Pius, Miljkovic Ducan, Wild Hans-Jakob, Buehler Niklaus, Goetschi Erwin, Golding Bernhard, Loeliger Peter, Gleason John, Pace Brian, Ellis Larry, Hunkeler Walter, Schneider Peter, Fuhrer Walter, Nordmann Rene, Srinivasachar Kasturi, Keese Reinhart, Mueller Klaus, Neier Reinhard, Eschenmoser Albert,
Project The hydrogenation of calix[4]pyrroles leading to the novel ligand system calix[4]pyrrolidine: Their properties and their application
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Original article (peer-reviewed)

Journal Helv. Chim. Acta
Volume (Issue) 98(11-12)
Page(s) 1921 - 2054
Title of proceedings Helv. Chim. Acta
DOI 10.1002/hlca.201500012


A review. 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 exptl. realization of the corrin synthesis via a final ring closure between rings A and D by the photochem. 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 photochem. variant of the synthesis of vitamin B12