10.下列化合物具有手性的是:CH3CO2H O2N H --OH H3C CH3H --OH L-C=C=C HO2C ACH3R CH3C H D.NO2 相关知识点: 试题来源: 解析 答案:C:手性碳原子指连有四个不同基团的碳原子,手性碳原子判断注意:(1)手性碳原子一定是饱和碳原子;(2)手性碳原子所连接的四个基团是不同的,手性分子是...
H2OCO2C_xH_y+H_2O_K^+ HO2+H质子膜铜片铂片CH3OHH_2O (只允许H通过)甲乙A.甲中铜片作阴极,K向铜片电极移动B.甲中若C2Hy为 C_2H_4 ,则生成1 mol C2H4的同时生成67.2L(标况)O2C.乙中 H_2SO_4 的作用是增强溶液的导电性D.乙中正极发生的电极反应为 CO_2+5e^-+6H^+===CH_3OH+H_2O...
The binding constants for CO addition to dirhodium complexes (I) are determined in 1,2-dichloroethane and in acetonitrile.doi:10.1002/chin.198702072M. Y. CHAVANDep. Chem., Univ. Houston, Houston, TX 77004, USAM. Q. AHSANDep. Chem., Univ. Houston, Houston, TX 77004, USAR. S. LIFSEY...
f = 4 (H2O) Step 4: Substitute Coefficients and Verify Result Count the number of atoms of each element on each side of the equation and verify that all elements and electrons (if there are charges/ions) are balanced. 2CO(NH2)2+4(CH3)2CHCH...
[Co4(谓3-NPEt3)2(HNPEt3)2(O2C-CH3)2-(v-OSiMe2OSiMe2O)2] has a centrosymmetric structure. The four cobalt atoms which are coordinated ... H Ackermann,F Weller,K Dehnicke - 《Zeitschrift Für Naturforschung B》 被引量: 0发表: 2000年 ...
反应②是苯环上引入硝基,反应类型是:取代反应;(2)C→D中消除酚羟基,F→G中又重新引入酚羟基,而酚羟基容易被氧化,所以流程中设计C→D的目的是:保护(酚)羟基不被氧化;(3)D是CH O-C-CH3,D与足量NaOH溶液发生酯的水解反应,化学方程式为:CH O-C-CH3+2NaOHCH ONa+CH3COONa+H2O,(4)D为CH O-C-CH3,...
COCH3HOCH2COCH3CCH3COOCH2COCH3HClCH3COONa(CH9O2C)HOHCHO/HHOHOABDC6H5CH2NHC(CH33(G)H3CCH3EFHH(C13H14O)(Br_2)/(CHCl_3) (C13H13O5Br)(C24H29NO)QHHCIHOCH2COCH2NC(CH33H2/Pd-CHOCH2CHCH2NHC(CH33H2OCH2C6H5HOHOJ(沙丁胺醇)已知:(1)R-OHHROOCCH3+CH3COOH(2)R-X+NHR-N-+HX请回答...
1980,19, 1023.sime3sime3cpco(co)2thf, -200c, hr 5.5h 73%osime3sime3cpco(nh4)2ce(no3)8ch3cn, pentane,rt 30 minosime3sime3eto2ceto2cco2(co)8 5mol%co(1atm), 500c 1.2-dme,hreto2ceto2co95%brian l. pagenkopf and tom livinghouse, j. am. chem. 20、 soc. 1996, 118, ...
已知苯酚钠能与卤代烃(RX)发生取代反应生成酚醚.ATBS是一种阻燃剂.可由双酚A(BPA)经三步合成.下列说法正确的是( ) A.BPA分子中所有碳原子可以处于同一平面B.ATBS的分子式为:C21H19Br4O2C.反应①.②.③的反应物分别为NaOH.ClCH2CH=CH2.Br2D.由苯酚和丙酮合成BPA可能生
例子 LiN(O)3 (Na)F (Ca3)((PO4)2) MnH2O4 (C2H5O)3Al Zn(O2CCH3)2 CuH10SO9 (C2O2H3)2Mn MgSO4(H2O)7 C18H10N2O4 KOsO3N CH3OCl Recent Oxidation Numbers