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Synthesis of β-functionalized α, β-dehydroamino acid derivatives
作者:Ken-ichi Nunami、Kiwamu Hiramatsu、Kimiaki Hayashi、Kazuo Matsumoto
DOI:10.1016/s0040-4020(01)86052-x
日期:1988.1
β-Functionalized α,β-unsaturated amino acids were synthesized by an addition-elimination pathway. Reaction of methyl β-bromo-α-formylaminoacrylates (3a-e), which were prepared by the condensation of methyl isocyanoacetate (1) with aldehydes followed by bromination, with thiols gave β-alkylthio-α, β-unsaturated amino acid derivatives (6a-f). The reaction of (3a) with sodium azide resulted in the formation
通过加成消除途径合成了β-官能化的α,β-不饱和
氨基酸。通过将
异氰基乙酸甲酯(1)与醛缩合,然后
溴化与
硫醇反应制得的β-
溴-α-甲酰基
氨基
丙烯酸甲酯(3a-e)反应,得到β-烷
硫基-α,β-不饱和
氨基酸衍
生物( 6a-f)。(3a)与
叠氮化
钠的反应导致形成2-氧代
咪唑啉衍
生物(4)。另一方面,通过由(3a和3d),分别用
苄醇和
苄胺,然后进行酸性
水合。
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Andreichikov, Yu. S.; Plakhina, G. D., Journal of Organic Chemistry USSR (English Translation), 1987, vol. 23, # 4, p. 789 - 792
作者:Andreichikov, Yu. S.、Plakhina, G. D.
DOI:——
日期:——
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KLOETZER, W.;DOERLER, G.;STANOVNIK, B.;TISLER, M., HETEROCYCLES, 1984, 22, N 8, 1763-1769
作者:KLOETZER, W.、DOERLER, G.、STANOVNIK, B.、TISLER, M.
DOI:——
日期:——
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ANDREJCHIKOV YU. S.; PLAXINA G. D., ZH. ORGAN. XIMII, 23,(1987) N 4, 872-876
作者:ANDREJCHIKOV YU. S.、 PLAXINA G. D.
DOI:——
日期:——
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NUNAMI, KEN-ICHI;HIRAMATSU, KIWAMU;HAYASHI, KIMIAKI;MATSUMOTO, KAZUO, TETRAHEDRON, 44,(1988) N 17, C. 5467-5478
作者:NUNAMI, KEN-ICHI、HIRAMATSU, KIWAMU、HAYASHI, KIMIAKI、MATSUMOTO, KAZUO
DOI:——
日期:——