Se. Denmark et al., TANDEM [4+2] [3+2] CYCLOADDITIONS OF NITROALKENES .13. THE SYNTHESIS OF (-)-DETOXININE/, Journal of organic chemistry, 62(6), 1997, pp. 1668-1674
(-)-Detoxinine, an unusual, highly-functionalized amino acid, is the c
ore residue of many components that comprise the detoxin complex. The
synthesis of(-)-detoxinine was accomplished in 10 steps and 13.4% over
all yield from commercially available dichlorodiisopropylsilane. The k
ey step is an asymmetric tandem inter [4 + 2]/intra [3 + 2] cycloaddit
ion between silyoxynitroalkene 17 and chiral vinyl ether (-)-24, illus
trating the application of a temporary silicon tether in the tandem ni
troalkene cycloaddition process.