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|Title: ||CONJUGATION OF SPIROCYCLOPROPANE WITH THE CARBONYL GROUP - CONFORMATIONAL-ANALYSIS OF SPIRO [CYCLOPROPANE-1,2'-STEROIDS]|
|Authors: ||DESAI, UR|
|Issue Date: ||1991|
|Publisher: ||JOHN WILEY & SONS LTD|
|Citation: ||MAGNETIC RESONANCE IN CHEMISTRY, 29(2), 148-151|
|Abstract: ||The conjugative ability of a spirocyclopropane on 4-en-3-one steroids was studied with the help of C-13 NMR and two-dimensional experiments such as COSY and NOESY. The conformational analysis of the A ring of these compounds indicates a 'normal' (1-alpha,2-beta)- half-chair conformation rather than the expected 'inverted' (1-beta,2-alpha)- half-chair conformation. Application of the modified McConnell equation for the shielding influence of the cyclopropane aids the analyses.|
|Appears in Collections:||Article|
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