Collect. Czech. Chem. Commun. 2009, 74, 927-934
https://doi.org/10.1135/cccc2009021
Published online 2009-06-01 11:40:12

α-(Disilylallenyl) α-amino acid derivatives from the Claisen rearrangement of propargyl glycinates

Mustafa Mohamed and Michael A. Brook*

Department of Chemistry, McMaster University, 1280 Main Street West, Hamilton, L8S 4M1, Canada

References

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12. The crystal data of 6a: C18H35NO4Si2, MW = 385.65, monoclinic, P 1 21/c 1, a = 11.2578(7)Å, b = 22.0766(14)Å, c = 9.8463(6)Å, β = 116.480(1)°, V = 6181.7(1)Å3, Z = 4, Dc = 1.312 g cm–3, μ(Mo-Kα) = 0.083 mm–1, F(00 0) = 2592, rectangular block, yellow, size = 0.5 × 0.16 × 0.345 mm, 6350 reflections measured (Rint = 0.0187), 5445 unique, wR2 = 0.1448 for all data, conventional R = 0.0501 [(Δ/σ)max = 000)] on F-values of 8642 reflections with I > 2σ(I), S = 0.944 for all data and 415 parameters. Unit cell determination and intensity data collection (2θ = 50 °C) were performed on a Bruker P4 diffractometer at 293(2) K. Structure solutions by direct methods and refinements by full-matrix least-squares methods on F2. Programs: XSCANS [Siemens Analytical X-ray Instrument Inc.: Madison, Wisconsin, USA 1996], SHELXTL-NT [Bruker AXS Inc.: Madison, Wisconsin, USA 1997]. CCDC (Deposit No: 620682) contains the supplementary crystallographic data. These data can be obtained free of charge from www.ccdc.cam.uk/conts/retrieving.html.
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