and convertthecarbon-carbon double bondstructure of pigment molecular into single bond [...] ord.feg.com.tw ord.feg.com.tw 亞東創新研發團隊所開發的美白凝膠產品(圖一)以專業的配方設計,藉由特殊美白成份與有機色素分子進行氧化 還原作用,進而破壞含雙鍵碳環的色素分子結構,使其成為單鍵的有機分子,進而...
1. 碳双键 一般天然的不饱和脂肪酸, 当中的碳双键(carbon-carbon double bond)是顺式(cis), 但反式脂肪的碳双键却是反式(trans)反式脂肪 … hk.knowledge.yahoo.com|基于33个网页 2. 碳-碳双键 请问什么是芳环... ... 丙基— —Propyl碳碳双键— —Carbon-carbon double bond碳碳三键— —Carbon-carb...
Double Bond, Carbon–CarbonReference work entry pp 241 Cite this reference work entry Encyclopedic Dictionary of Polymers Jan W. Gooch 49 Accesses n The sharing of two electron pairs between adjacent carbon atoms. The carbon–carbon double bond (pi or π bond) is the most reactive part of ...
Single-crystal X-ray diffraction analysis revealed a short uranium−carbon bond in these species. Theoretical calculations suggest that the nature of the bond between the carbon of CDP and uranium is a double dative bond. Both of the σ and π dative bonds in Cl4U⇇CDP are strongly ...
Reaction of a—haloketones with aldehydes in the presence of either SmI 3 or Sm/I 2 formed the carbon carbon double bond to give α,β—unsaturated ketones in good to excellent yields under mild conditions. Samarium ( III ) enolates formed from the dehalogenation of α—haloketones by SmI...
摘要: Double bonds activated by the electron withdrawing group(s) are cleaved with the reagent system consisting of a hard Lewis acid and ethanethiol to give dithioacetals.关键词: thio compounds (benzene compounds DOI: 10.1016/0040-4039(81)80019-6 ...
Unsaturated carbon bonds are double bonds between two carbon atoms. The double carbon bond reduces the bonds that exist between carbon and hydrogen in hydrocarbons. These hydrocarbons are referred to as ‘unsaturated’. Single bonds between carbon atoms maximize the hydrogen content in hydrocarbons, ...
Carbon-Double-Bond-Free Printed Solar Cells from TiO2/CH3NH3PbI3/CuSCN/Au: Structural Control and Photoaging Effects "Carbon-Double-Bond-Free Printed Solar Cells from TiO2/CH3NH3PbI3/CuSCN/Au: Structural Control and Photoaging Effects", ChemPhysChem, 15, 1194-1200(2014... S Ito,S Tanaka,H...
Double bond isomerization by in situ generated ruthenium hydride catalyst in 6- to 9-membered hydrazine heterocycles including an endocyclic N–N bond was investigated. Based on the results of the experiments, a conclusion was made that the generation of resonancestabilized enehydrazides is generally...
Carbon–carbon double bond of α,β-unsaturated carbonyl compounds can be reduced by enoate reductase (ER), which is an important reaction in fine chemical... Xiuzhen,Gao,and,... - 《Enzyme & Microbial Technology》 被引量: 21发表: 2012年 Asymmetric Hydrogenation of the C–C Double Bond of...