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Published November 15, 1992 | Published + Supplemental Material
Journal Article Open

Structure of an 11-membered cyclic silyl enol ether from condensation of methacrolein and a pseudoephedrine-derived O-silyl ketene N,O-acetal

Abstract

The title compound, (4S,5S,8R,10Z)-2,2,5,6,8,10- hexamethyl-4-phenyl-l,3-dioxa-6-aza-2-silacycloundec- 10-en-7-one, crystallizes with two virtually identical molecules in the asymmetric unit, each with the same absolute configuration. Bond distances and angles are normal; the closest approaches across the ring between non-bonded atoms are all greater than 3.35 Å. The amide and enol ether groups are planar to within ± 0.06 Å.

Additional Information

© 1992 International Union of Crystallography. Received 20 February 1992; accepted 25 June 1992. We gratefully acknowledge generous financial support from the National Science foundation.

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Supplemental Material - hh1008.cif

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August 20, 2023
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