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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 Cycloisomerization

Lookup NU author(s): Emeritus Professor Bernard Golding

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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 to 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.

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Author(s): Yamada Y, Wehrli P, Miljkovic D, Wild H-J, Buhler N, Gotschi E, Golding B, Loliger P, Gleason J, Place B, Ellis L, Hunkeler W, Schneider P, Fuhrer W, Nordmann R, Srinivasachar K, Keese R, Muller K, Neier R, Eschenmoser A

Publication type: Article

Publication status: Published

Journal: Helvetica Chimica Acta

Year: 2015

Volume: 98

Issue: 11-12

Pages: 1921-2054

Print publication date: 01/12/2015

Online publication date: 14/12/2015

Acceptance date: 01/10/2015

ISSN (print): 0018-019X

ISSN (electronic): 1522-2675

Publisher: Wiley

URL: http://dx.doi.org/10.1002/hlca.201500012

DOI: 10.1002/hlca.201500012

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