C5 BENZOTHIAZOLYL SULFONE COMPOUND, METHOD OF PREPARING THE SAME, METHOD OF PREPARING POLYENE DIALDEHYDE COMPOUND USING THE SAME, AND METHOD OF SYNTHESIZING LYCOPENE USING THE SAME
Efficient syntheses of climate relevant isoprene nitrates and (1<i>R</i>,5<i>S</i>)-(−)-myrtenol nitrate
作者:Sean P Bew、Glyn D Hiatt-Gipson、Graham P Mills、Claire E Reeves
DOI:10.3762/bjoc.12.103
日期:——
chemoselective synthesis of several important, climate relevant isoprene nitrates using silver nitrate to mediate a 'halide for nitrate' substitution. Employing readily available starting materials, reagents and Horner-Wadsworth-Emmons chemistry the synthesis of easily separable, synthetically versatile 'key building blocks' (E)- and (Z)-3-methyl-4-chlorobut-2-en-1-ol as well as (E)- and (Z)-1-((2-met
Unsaturated sulfinamides II1. An efficient preparation of 4-(2'-alkenesulfinyl)-morpholines by the reaction of 4-morpholinesulfenyl chloride with allylic alcohols
作者:Jean-Bernard Baudin、Sylvestre A Julia
DOI:10.1016/0040-4039(88)85134-7
日期:1988.1
By the title reaction carried out in the presence of triethylamine, several allylic alcohols have been converted via the transient 4-morpholinesulfenate esters Id into 4-(2'-alkenesulfinyl)-morpholines 2.
COPPER (I)-CATALYZED REACTION OF ISOPRENE BROMOHYDRIN WITH ORGANOLITHIUM REAGENT
作者:Shuki Araki、Yasuo Butsugan
DOI:10.1246/cl.1980.185
日期:1980.2.5
The reaction of isoprene bromohydrin (1-bromo-2-methyl-3-buten-2-ol) (1) with ethyl-, propyl- and butyllithium in the presence of copper (I) iodide leads to the exclusive formation of the vinyl group migrated 2-alkyl-4-penten-2-ols (3d–3f), in contrast to the reaction with methyl-, phenyl- and benzyllithium, which yields the corresponding 2-methyl-4-substituted-2-buten-l-ols (2a–2c).
Palladium(0)-Catalyzed Coupling Reaction of Isoprene Bromohydrin with Aromatic Organolithium Reagents
作者:Shuki Araki、Masayuki Ohmura、Yasuo Butsugan
DOI:10.1246/bcsj.59.2019
日期:1986.6
Palladium(0)-catalyzedreaction of isoprene bromohydrin with aromatic organolithium reagents selectively gave good yields of coupling products without rearrangement.
钯 (0) 催化异戊二烯溴醇与芳族有机锂试剂的反应选择性地产生了良好的偶联产物,无需重排。
Amino-functionalized (meth)acryl polymers by use of a solvent-polarity sensitive protecting group (Br-<i>t</i>-BOC)
作者:Helmut Ritter、Monir Tabatabai、Markus Herrmann
DOI:10.3762/bjoc.12.26
日期:——
(meth)acrylate) 6a,b bearingprotected amino side groups. The subsequent solvolysis of the Br-t-BOC function led to the new polymers poly(2-aminoethyl (meth)acrylate) 8a,b with protonated free amino groups. The monomers and the resulting polymers were thoroughly characterized by (1)H NMR, IR, GPC and DSC methods. The kinetics of the deprotection step was followed by (1)H NMR spectroscopy. The solvent polarity
我们描述了溴-叔丁氧羰基(Br-t-BOC)-氨基保护的单体2-((1-溴-2-甲基丙烷-2-基)氧羰基氨基)乙基(甲基)丙烯酸酯3a,b的合成。为此,使(甲基)丙烯酸2-异氰酸根合乙酯1a,b与1-溴-2-甲基丙烷-2-醇(2a)反应。(Br-t-BOC)-氨基乙基(甲基)丙烯酸酯3a,b的自由基聚合产生带有保护的氨基侧基的聚((Br-t-BOC)-氨基乙基(甲基)丙烯酸酯)6a,b。Br-t-BOC功能的随后溶剂分解产生具有质子化游离氨基的新聚合物聚((甲基)丙烯酸2-氨基乙酯(甲基)丙烯酸酯)8a,b。通过(1)NMR,IR,GPC和DSC方法对单体和所得的聚合物进行了彻底的表征。脱保护步骤的动力学之后是(1)1 H NMR光谱。