Die isomeren bicyclo[4.2.1]nonen-(3)-ole-(2)und bicyclo[4.2.1]-nonanole-(2)
作者:Horst Sadlo、Wolfgang Kraus
DOI:10.1016/0040-4020(78)80104-5
日期:1978.1
The preparation of exo and endo bicyclo[4.2.1]nonen-(3)-ol-(2) (3) and (4), and the preparation of exo and endo bicyclo[4.2.1]nonanol-(2) (1) and (2) from 3,3-dihalotricyclo[4.2.1.02,4]nonyl derivatives is described. On the basis of the configuration of the allylic alkohols 3 and 4 the configuration of the saturated compounds 1 and 2 has been unequivocally determined.
作者:Clifford Burford、Frank Cooke、Glenn Roy、Philip Magnus
DOI:10.1016/s0040-4020(01)88585-9
日期:1983.1
chloromethyltrimethylsilane 1 with sec-BuLi in THF at -78° produces chloromethyl(tri-methylsilyl)lithium 4. Treatment of 4 with a wide range of aldehydes and ketones gives ⇌,β-epoxytrimethylsilanes 5–28, which on acidic hydrolysis give homologated aldehydes.
Enantioselective intramolecular cyclizations of prochiral cyclohexanones using chiral lithium amide bases
作者:Jeffrey E. Kropf、Steven M. Weinreb
DOI:10.1039/a807052k
日期:——
The first examples of intramolecular cyclizations of prochiral cyclohexanones with chiral lithium amide bases have been effected in good yields and enantiomeric ratios.
手性环己酮与手性锂酰胺碱分子内环化反应的首批实例已经实现,且收率和对映体比率良好。
The C−C Bond Activation and Skeletal Rearrangement of Cycloalkanone Imine by Rh(I) Catalysts