all-substituted sp3-hybridized carbon-center was investigated via tandem reaction of dehydroamino acid derivatives. The diethylzinc-promoted reaction of dehydroamino acid derivatives with acid anhydride or π-allyl palladium complex proceeded smoothly to afford α,α-disubstituted amino acids via a radical and anionic carbon–carbon bond-forming processes. The tandem reductive reaction of N-phthaloyl dehydroalanine
通过脱氢
氨基酸衍
生物的串联反应研究了全取代的sp 3-杂化碳中心的形成。脱氢
氨基酸衍
生物与酸酐或π-烯丙基
钯配合物的
二乙基锌促进反应顺利进行,通过自由基和阴离子碳-碳键形成过程提供了α,α-二取代
氨基酸。通过使用Bu 3 SnH和Pd(PPh 3)4,N-
邻苯二甲酰基脱氢丙
氨酸的串联还原反应也有效地进行。