Synthesis of (±)-2,3-methanoproline: A novel inhibitor of ethylene biosynthesis
作者:Frank L. Switzer、Herman Van Halbeek、Elizabeth M. Holt、Charles H. Stammer、Mikal E. Saltveit
DOI:10.1016/s0040-4020(01)85122-x
日期:1989.1
was also used to examine the effect of the cyclopropane ring on its conformation. This 2, 3-methanoamino acid (2) was found to be a weak inhibitor of ethylene biosynthesis in cucumber cotyledon strips and germinating squash seeds. The data show that 2 probably inhibits the conversion of 1-aminocyclopropanecarboxylic acid to ethylene in these tissues.
The first enantioselective aza-Henry reaction of non-activated cyclic iminoesters, derived from cyclic amino acids, has been developed. Good yields and enantioselectivities were observed for the reactionusing our original cinchonaalkaloid sulfonamide/zinc(II) catalyst. The transition state was proposed to explain the stereoselectivity based on experiments and DFT calculations.
已经开发了衍生自环状氨基酸的非活化环状亚氨基酯的第一个对映选择性氮杂-亨利反应。使用我们的原始金鸡纳生物碱磺酰胺/锌( II ) 催化剂的反应观察到良好的产率和对映选择性。基于实验和 DFT 计算,提出了过渡态来解释立体选择性。