1) asymmetric vicinal diols
不对称邻二醇
1.
Synthesis of asymmetric vicinal diols and their application in organic synthesis;
不对称邻二醇的合成及其在有机合成中的应用
2) asymmetric alcoholysis
不对称醇解
1.
The lipase-catalyzed asymmetric alcoholysis of α-cyano-3-phenoxybenzyl acetate (CPBAc) in organic solvents for the synthesis of S-α-cyano-3-phenoxybenzyl alcohol (S-CPBA) was studied.
研究了有机相中脂肪酶催化α 氰基 3 苯氧基苄醇乙酯 (CPBAc)的不对称醇解反应 ,制备了S α 氰基 3 苯氧基苄醇(S CPBA) 。
3) asymmetric aldol condensation
不对称醇醛缩合
4) symmetric neighborhood
对称邻域
5) asymmetric dihydroxylation
不对称二羟化
1.
Synthesis and utilization of two novel chirl liands for asymmetric dihydroxylation;
两种不对称二羟化反应的新型手性配体的合成及其应用
2.
A novel recoverable and reusable chiral ligand for asymmetric dihydroxylation of olefins was prepared from 1,4-difluoroanthraquinone by two steps.
在不对称二羟化反应的 2种不同体系中 ,该配体对 6种烯烃的反应表现出很高的对映选择性 (80 %～97% )和催化活性 (80 %～ 94 % ) 。
3.
Ethyl trans-p-methoxycinnamate was transformed into ethyl (2R,3S)-2,3-dihydroxy-3-(4-methoxyphenyl)propionate(2) in 87% yield and 99%ee by osmium-catalyzed asymmetric dihydroxylation with 1,4-bis(9-O-quininyl)phthalazine as the chiral ligand.
以1,4-双(9-O-奎宁基)-2,3-二氮杂萘为手性配体,经锇催化的不对称二羟化反应将反式-对甲氧基肉桂酸乙酯转化为(2R,3S)-2,3-二羟基-3-(4-甲氧基苯基)丙酸乙酯(2),收率87%,ee值大于99%;2与氯化亚砜反应得到地尔硫的手性中间体(4S,5R)-4-(4-甲氧基苯基)-5-乙氧羰基-1,3-二氧杂-2-氧代硫杂环戊烷,收率85%。
6) Asymmetric dihydroxylation
不对称二羟基化
1.
METHODS The asymmetric dihydroxylations of trans stilbene, naphthyl allyl ether and styrene were catalyzed by DHQD PHAL OPEG OMe/OsO 4 with tBuOH H 2O (1∶1) as the solvent and K 3Fe(CN) 6 as the cooxidant.
方法 以 t Bu OH/H2 O(1∶1)为溶剂 ,以 K3Fe(CN ) 6 为共氧化剂 ,用 DHQD- PHAL -OPEG- OMe/Os O4 分别催化反式二苯乙烯、萘基烯丙基醚和苯乙烯的不对称二羟基化反应 。
2.
The asymmetric dihydroxylation of ortho-substituted 1,2-diphenylethenes affords the corresponding diols in good yields (77～89%) and high enantiomeric excesses (73～98%) in the presence of catalytic amount OsO4 and four different chiral ligands respectively.
邻位取代１，２－二苯乙烯催化不对称二羟基化反应张生勇，孙晓莉（第四军医大学化学教研室西安７１００３２）关键词 不对称二羟基化，手性二醇近年催化的反式稀烃的不对称二羟基化反应取得明显进展［１］，但催化的邻位取代的１，２－二苯乙烯类化合物。
补充资料：己二酸、1,4-丁二醇、异癸醇、新戊二醇生成酯
CAS：84777-46-8
中文名称：己二酸、1,4-丁二醇、异癸醇、新戊二醇生成酯
英文名称：Hexanedioic acid, mixed esters with 1,4-butanediol, isodecanol and neopentyl glycol
中文名称：己二酸、1,4-丁二醇、异癸醇、新戊二醇生成酯
英文名称：Hexanedioic acid, mixed esters with 1,4-butanediol, isodecanol and neopentyl glycol
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条