丙基
- propyl group
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研究表明以苄基作为环己二胺联结链的材料的催化活性和光学选择性高于相应的以丙基为联结链所得的材料,这主要归因于苄基的空间刚性和较强的吸电子性质。
The material with benzyl group as the linker shows higher catalytic activity and enantioselectivity than the material with propyl group as the linker , which is mainly due to the spacial rigidity and electron-withdrawing ability of the benzyl group .
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在这些端基中,带有烯丙基氯原子的端基活性最高。
Of these end groups those having an allylic chlorine might be expected to show the highest activity .
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丙基硫氧嘧啶对甲状腺NADH-细胞色素b5还原酶活性影响
Effect of propylthiouracil on activity of thyroid NADH-cytochrome b_5 reductase
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N-异丙基邻甲苯胺催化合成&芳胺N-烷基化研究(Ⅱ)
Catalytic synthesis of n-isopropyl-o-toluidine ── n-akylation of aromatic amine series (ⅱ)
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钠取代N-烷基化反应合成4-(N,N-二烯丙基氨基)吡啶
Synthesis of 4 - ( N , N-diallylamino ) pyridine by Na-substitution N-alkylation
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相转移催化合成3-(N,N-二烯丙基)氨基-4-甲氧基乙酰苯胺
Synthesis of 3 - ( N , N-Diallyl ) Amino-4-Methoxy Acetanilide by phase-Transfer catalysis
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新型手性N,P配体的合成及其在不对称氢化和烯丙基烷基化反应中的应用
The Synthesis of New Chiral N , P Ligands and Their Applications in Asymmetric Hydrogenation and Allylic Alkylation
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表面活性剂对钪-铜铁试剂络合吸附波的增敏效应Cu(Ⅰ)-烯丙基硫脲的络合吸附波
On the adsorptive - complex wave of copper ( ⅰ ) with allylthiourea
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可逆性化学反应结合HPLC测定氨丙基硅胶表面上氨基的含量
Determination of amino groups immobilized on amino-propyl-silica-gel surfaces by HPLC with reversible chemical reaction
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辅酶Q(10)对异丙基肾上腺素心肌损伤电活动的保护作用
Protective effect of Co Q_ ( 10 ) on the electrical activities of ISO-induced myocardial lesions
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Cu(Ⅰ)催化及相转移条件下末端烯(炔)丙基化偶联反应研究
Study on allylic or propargylic coupling reaction of terminal alkyne under copper (ⅰ) catalysis and phase transfer condition
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巯丙基官能团化MCM-41对Pb(Ⅱ)的吸附
Adsorption of Pb (ⅱ) by Mercapto - modified MCM - 41
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谷氨酸甘氨酸合铜(Ⅱ)混配配合物的制备N-(1-乙氧羰基-3-苯氨甲酰基丙基)甘氨酰甘氨酸衍生物的合成
The Preparation of a Mingling Coordination Compound of Glutamate Glycine Copper (ⅱ) SYNTHESIS OF N - ( 1-CARBETHOXY-3 - PHENYLCARBAMOYLPROPYL ) GLYCYL GLYCINE
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百灵胶囊联合丙基硫氧嘧啶治疗Graves病的疗效观察
Curative Effect of Bailing Capsule Combined with Propylthiouracil in Treating Graves Disease
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烯丙基卤对Mo(Ⅳ)体系催化丁二烯聚合动力学的影响
The effect of allyl halides on the kinetics of butadiene polymerization with mo ( iv ) catalyst system
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含硫Schiff碱型配体的合成研究&环己酮缩烯丙基氨基硫脲的合成及结构表征
Synthetic study of Schiff base type ligands containing thiocarbamide group synthesis and
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Pd-La/γ-Al2O3和Pd-La/MgAl2O4对2,6-二异丙基苯酚气相胺化反应的催化性能
Catalytic Performance of Pd-La / γ - Al_2O_3 and Pd-La / MgAl_2O_4 for Gas-Phase Amination of 2,6-Diisopropyl Phenol
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目的采用GC法测定大蒜β环糊精包合物中的大蒜素(烯丙基三硫化物)含量。
Objective Determination of allicin ( diallyl trisulfide ) in the allium complex with β - cyclodextrin by GC .
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而R为烯丙基时,断裂方式与直链烷基衍生物的相同,但α-断裂是主要的;
When R is allyl , the decomposition modes were the same as those of R being n-alkyl , but α - cleavage was prominant .
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聚N-异丙基丙烯酰胺/纳米SiO2复合水凝胶的合成及溶胀性能
Synthesis and swelling properties of poly ( n-isopropylacrylamide ) / nano-sio_2 composite hydrogels
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目的:探讨粘膜粘附缓释剂羟丙基纤维素(HPC)与丝裂霉素C(MMC)联合膀胱灌注对MMC在膀胱中保留的效果。
Purpose : To study the effect of mitomycin-c retention in urinary bladder by intravesical instillation of HPC-MMC .
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利用X射线单晶衍射分析以及旋光度比较分析确定了不对称烯丙基化产物的绝对构型。
Besides , the absolute configurations of the asymmetric allylation adducts were confirmed by the single-crystal X-ray diffraction analysis and the comparation of the optical rotation .
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用IR和UV-Vis光谱对Ti-Si沸石吸附H(2)O、H(2)O2、烯丙基氯后的变化情况进行了研究。
Ti-Si zeolites treated by adsorption of H2O , H2O2 and allyl chloride have been carefully studied by using IR and UV-Vis spectra .
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水溶性2羟丙基β环糊精的合成前列腺素E1-羟丙基-β-环糊精包合物及其鼻粉剂与舌下片的研究
Synthesizing of water soluble 2 hydroxypropyl β cyclodextin Studies on Prostaglandin E_1-Hydroxypropyl - β - Cyclodextrin Complex and Its Two New Dosage Forms-Nasal Powders and Sublingual Tablets
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多功能治疗仪降低产后出血量的临床观察采用辐射聚合方法制备了聚N-异丙基丙烯酰胺(PNIPA)均聚物、N?
The Function of Poly-function Therapy Device for Reducing Postpartum Hemorrhage Hydrogels of poly N ?
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研究了混炼工艺对聚亚丙基碳酸酯(PPC)/SBR共混物性能的影响。
The influence of mixing procedure on the properties of PPC / SBR blend was investigated .
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研究了以单环单萜烯烃为原料,CD分子筛为催化剂,歧化合成对异丙基甲苯的工艺条件,并对对异丙基甲苯进行了谱图解析。
This paper focuses on the technique requirements for disproportion synthesizing p cymene with monocyclic monoterperpene as raw material and CD molecular sieve as catalyst .
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本合成工作的关键为9,15环丙基的形成及在重建GA骨架时A环中双键的重排反应。
The key reactions included the formation of 9,15-cyclopropyl function and double bond migration in the A ring to reestablish the GA skeleton .
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Te可能有利于丙烯α-H的脱除和/或烯丙基的插氧反应。
Te might be favorable to α - H abstraction of propene and / or oxygen insertion into allylic species .
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离子液体中的Mannich反应和钯催化的烯丙基取代反应研究
Studies on Mannich Reaction and Palladium-Catalyzed Allylation in Ionic Liquids