Home Physical Sciences The crystal structure of 9-oxabicyclo[3.3.1]non-l-yl methanesulphonate1
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The crystal structure of 9-oxabicyclo[3.3.1]non-l-yl methanesulphonate1

Published/Copyright: August 25, 2010

Abstract

The structure of the title compound (2) has been determined [P21/c, a = 10.957(3), b = 9.401(2), c = 11.181(3) Å, β = 113.19(2)°, Z = 4, R = 0.047]. (2) has a better leaving group (methanesulphonate) than any acetal derivative we have studied so far, as is reflected in the very long bond to the leaving group [C(1) – O(2) 1.478(3) Å]. The central C – O bond C(1) – O(9) shows a significant shortening compared with related equatorial acetals. This is consistent with our suggestion (preceding paper) that the C – O bond length patterns in these compounds are an expression of σ-conjugation.

Published Online: 2010-8-25
Published in Print: 1983-1-1

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