Stereocontrol in intramolecular hydrosilylation of allyl and homoallyl alcohols: a new approach to the stereoselective synthesis of 1,3-diol skeletons
作者:Kohei. Tamao、Takashi. Nakajima、Ritsuo. Sumiya、Hitoshi. Arai、Noriko. Higuchi、Yoshihiko. Ito
DOI:10.1021/ja00279a097
日期:1986.9
31.30; H, 5.22; N, 36.52. Found: C, 31.34; H, 5.25; N, 36.70. Low-resolution mass spectral analysis showed the expected molecular ion at m / e 345. The infrared spectrum contained a cyano stretching peak at 2180 cm-'. The 31P NMR spectrum consisted of a singlet at -7.8 ppm. Crystals suitable for X-ray analysis were grown by slow evaporation of a solution of 2 in hexane. The structure of 2 is illustrated
31.30; H,5.22;N,36.52。发现:C,31.34;H,5.25;N,36.70。低分辨率质谱分析显示预期的分子离子位于 m/e 345。红外光谱在 2180 cm-' 处包含一个氰基拉伸峰。31P NMR 光谱由-7.8 ppm 的单峰组成。通过缓慢蒸发 2 在己烷中的溶液来生长适用于 X 射线分析的晶体。2 的结构如图 2 所示,重要的结构参数在表 I.9 中给出。这两种化合物 1 和 2 与大气接触时稳定,加热至中等温度时不受影响。1和2的X射线结构信息与氰基而不是异氰基排列一致,1°,红外光谱证实了这一点。” 2中氰基的三键比1中的略长,