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(R)-α-methyl-phenylalanine hydrochloride | 14603-77-1

中文名称
——
中文别名
——
英文名称
(R)-α-methyl-phenylalanine hydrochloride
英文别名
(R)-α-methylphenylalanine hydrochloride;α-methyl-D-dopa hydrochloride;(2R)-2-benzylalanine hydrochloride;2-amino-2-methyl-3-phenyl propionic acid hydrochloride;(R)-(+)-α-methylphenylalanine hydrochloride;D-alpha-Me-Phe.HCl;(2R)-2-amino-2-methyl-3-phenylpropanoic acid;hydrochloride
(R)-α-methyl-phenylalanine hydrochloride化学式
CAS
14603-77-1;14603-95-3;30990-90-0;103095-93-8
化学式
C10H13NO2*ClH
mdl
——
分子量
215.68
InChiKey
KKRHZNOGXJPKDW-HNCPQSOCSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    -2.68
  • 重原子数:
    14
  • 可旋转键数:
    3
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.3
  • 拓扑面积:
    64.9
  • 氢给体数:
    2
  • 氢受体数:
    3

反应信息

点击查看最新优质反应信息

文献信息

  • Asymmetric Synthesis of α-Amino Acids: Preparation and Alkylation of Monocyclic Iminolactones Derived from α-Methyl <i>trans</i>-Cinnamaldehyde
    作者:Ta-Jung Lu、Cheng-Kun Lin
    DOI:10.1021/jo801514g
    日期:2008.12.19
    monocyclic iminolactones 14a and 14b have been prepared. The chiral auxiliary 12 was obtained from alpha-methyl-trans-cinnamaldehyde through reduction, methylation, Sharpless asymmetric dihydroxylation, and oxidation in 87% overall yield. Esterification of compound 12 with the respective protected amino acids followed by deprotection and cyclization provided the corresponding iminolactones, each in 82%
    已经制备了两种新颖的手性单环亚氨基内酯14a和14b。通过还原,甲基化,Sharpless不对称二羟基化和氧化从α-甲基-反式肉桂醛获得手性助剂12,总产率为87%。用各自的被保护的氨基酸酯化化合物12,然后去保护和环化,提供了相应的亚氨基内酯,每一个的总产率为82%。亚氨基内酯14a的烷基化以良好的产率(78-99%)和优异的非对映选择性(de> 98%)提供了α-甲基-α,α-二取代的产物15和16。亚氨基内酯14b的烷基化提供了高产率(51-86%)但中等非对映选择性(43-56%)的α-苄基-α,α-二取代产物15a,16b,17和18。当HMPA或DMPU用作助溶剂时,亚氨基内酯14b的烷基化速度加快,产率提高(56-99%),非对映选择性(50-83%)。二烷基化亚氨基内酯的水解以良好的收率(80-98%)和高的对映体过量(98-99%)产生了α,α-二取代的α-氨基酸,并具有
  • Chiral environment specifically induced by metal ion: Asymmetric α-alkylation of α-amino esters using pyridoxal derivatives having a chiral ionophore function
    作者:Kazuyuki Miyashita、Hideto Miyabe、Kuninori Tai、Chiaki Kurozumi、Hiroshi Iwaki、Takeshi Imanishi
    DOI:10.1016/s0040-4020(99)00708-5
    日期:1999.10
    prepared from α-amino esters and pyridoxal models having an ionophoric side-chain composed of a chiral glycerol structure, proceeded in the presence of Li+ or Na+ to afford α,α-dialkyl amino esters after acidic hydrolysis. Both the structure of the side chain and the metal ion were found to be in relation with the stereoselectivity, affording the highest stereoselectivity when the side-chain having a 2-naphthylmethoxy
    由α-氨基酯和具有由手性甘油结构组成的离子性侧链的吡ation醛模型制备的醛亚胺的立体选择性烷基化在Li +或Na +存在下进行,在酸性水解后得到α,α-二烷基氨基酯。发现侧链的结构和金属离子均与立体选择性有关,当在各自的3'-和2'-分别具有2-萘甲氧基和甲氧基的侧链时,立体选择性最高。在Na +存在下进行职位定位。
  • Benzylic Phosphates as Electrophiles in the Palladium-Catalyzed Asymmetric Benzylation of Azlactones
    作者:Barry M. Trost、Lara C. Czabaniuk
    DOI:10.1021/ja301461p
    日期:2012.4.4
    Palladium-catalyzed asymmetric benzylation has been demonstrated with azlactones as prochiral nucleophiles in the presence of chiral bisphosphine ligands. Benzylic electrophiles are utilized under two sets of reaction conditions to construct a new tetrasubstituted stereocenter. Electron density of the phenyl ring dictates the reaction conditions, including the leaving group. The reported methodology
    在手性双膦配体存在的情况下,钯催化的不对称苄基化作用已被证明是使用吖内酯作为前手性亲核试剂。在两组反应条件下利用苄基亲电试剂构建新的四取代立体中心。苯环的电子密度决定了反应条件,包括离去基团。报道的方法代表了氨基酸前体中一种新的不对称碳-碳键形成。
  • Chiral salen-metal complexes as novel catalysts for asymmetric phase transfer alkylations
    作者:Yuri N. Belokon、Michael North、Vadim S. Kublitski、Nikolai S. Ikonnikov、Pavel E. Krasik、Viktor I. Maleev
    DOI:10.1016/s0040-4039(99)01214-9
    日期:1999.8
    salen-metal complexes have been tested as catalysts for the C-alkylation of aldimine Schiff's bases of alanine esters with alkyl bromides under phase-transfer conditions (solid sodium hydroxide, toluene, ambient temperature, 1–10% of the catalyst). The best catalyst, which was derived from a Cu(II) complex of (1R,2R or 1S,2S)-[N,N′-bis(2′-hydroxybenzylidene)]-1,2-diaminocyclohexane, gave α-methyl-α-amino
    在相转移条件下(固体氢氧化钠,甲苯,环境温度,催化剂的1-10%),手性的Salen-金属络合物已作为催化剂用于醛亚胺Schiff丙氨酸酯与烷基溴的C-烷基化反应中。最好的催化剂是由(1 R,2 R或1 S,2 S)-[ N,N'-双(2'-羟基亚苄基)]-1,2-二氨基环己烷的Cu(II)络合物衍生的,得到对映体过量70-96%的α-甲基-α-氨基酸。
  • Asymmetric alkylation catalyzed by chiral alkali metal alkoxides of TADDOL. Synthesis of α-methyl amino acids
    作者:Yu. N. Belokon、K. A. Kochetkov、T. D. Churkina、N. S. Ikonnikov、A. A. Chesnokov、O. V. Larionov、H. V. Kagan
    DOI:10.1007/bf02494637
    日期:1999.5
    enantioselective alkylation of Schiff's bases derived from alanine with reactive alkyl halides. Acid hydrolysis of the reaction products affords (R)-α-methylphenyl-alanine, (R)-α-allylalanine, and (R)-α-methylnaphthylalanine in 61–93% yields and withee 69–94%. When (S,S)-TADDOL is used, the (S)-amino acid is formed. A mechanism explaning the observed features of the reaction is proposed.
    结果表明,由 (4R,5R)-2,2-二甲基-1,3-二氧戊环-4,5-双(二苯基甲醇) ((R,R)-TADDOL) 及其一些衍生物形成的醇钠可以用作手性催化剂,用于从丙氨酸衍生的席夫碱与反应性烷基卤化物的对映选择性烷基化。反应产物的酸水解得到 (R)-α-甲基苯基-丙氨酸、(R)-α-烯丙基丙氨酸和 (R)-α-甲基萘丙氨酸,产率为 61-93%,产率为 69-94%。当使用 (S,S)-TADDOL 时,会形成 (S)-氨基酸。提出了解释观察到的反应特征的机制。
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