Chiroptische Eigenschaften und absolute Konfiguration von 9, 9′‐Spirobifluoren‐Derivaten | Zendy

Haas G. | Zendy; Hulbert P. B. | Zendy; Klyne W. | Zendy; Prelog V. | Zendy; Snatzke G. | Zendy

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Chiroptische Eigenschaften und absolute Konfiguration von 9, 9′‐Spirobifluoren‐Derivaten

Author(s) -

Haas G.,

Hulbert P. B.,

Klyne W.,

Prelog V.,

Snatzke G.

Publication year - 1971

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19710540208

Subject(s) - chemistry , optical rotatory dispersion , circular dichroism , absolute configuration , cotton effect , stereochemistry , absolute (philosophy) , vibrational circular dichroism , crystallography , philosophy , epistemology

The circular dichroism and optical rotatory dispersion of three vespirenes, three vespirones, and of some related 9, 9′‐spirobifluorene derivatives [4] have been measured. The absolute configurations of these compounds have been determined from chiroptical properties (CU., ORD.) in four ways which give mutually consistent results. For the (−)‐vespirenes the (R)‐configuration (Figs. 1 and 2) follows from 1 is treatment.

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