课程名称︰有机化学乙上 1st期中 课程性质︰必修 课程教师︰陈平 开课学院：生农学院 开课系所︰农化系 考试日期（年月日）︰102/10/17 考试时限（分钟）：100分钟 是否需发放奖励金：是 （如未明确表示，则不予发放） 试题 : Ⅰ.Full in the blanks. (7pts) 1.There are ____electrons in the outermost electron shell for Selenium. 2.There are ____sp3 hybridized carbons and ____ sp2 hybridized carbons in the compound below. "2-(diethylamino)ethyl 4-aminobenzoate"的图 3.There are ____primary hydrogens. ____secondary hydrogens. ____teriary hydrogens. ____quaternary carbons in the compound below. "2,2,4-Trimethylpentane"的图 Ⅱ.Selections(17pts) 1.Please circle the more electroneative elememt in each row.(3pts) Li C Cl C Na H 2.Please circle the molecule with the higher boiling point each row.(2pts) Propane n-Hexane 2,2-Dimethylbutane n-Hexane 3.Please circle the more stable compound (1pts) Cyclopentane Ethylcyclopropane 4.Please circle the compound with the higher dipole moment in each row.(2pts) Hydroquinone Resorcin Carbonyl chloride Methanal 5.Please circle the more stable species.(5pts) CH3(CO)CH2- CH3C(O-)=CH2 CH2=CHCH(+)CH3 CH2(+)CH=CHCH3 O(-)N(+)(=CH2)O(-) O=N(+)(CH2(-))O(-) (N为中心原子 sp3外接O,O,C) CH3CH2O(-) 苯酚阴离子 CH2=CHCH=CHCH(+)CH3 CH2=CHCH(+)CH=CHCH3 6.Please circle the group with higher priority 苯基 乙炔基 三级丁基 乙烯基 氰基 胺基 羧基 醛基 III.Stereoisomer identification.Please indicate the the relationship between the following pairs of compounds.("i"dentical,"c"onstitutional, "d"iastereomer,"e"nantiomer.)(5pts) http://ppt.cc/Uotv IV.Prochirality.Please assign the prochiral hydrogens and the prochiral faces for the two following compounds, respectively.(4pts) http://ppt.cc/Jk4r V. Structure Drawing. Draw the skeletal structure including stereochemistry with lone pairs for the following compounds.(38pts) 1.C6H5-N3 2.H3C-NC 3.(S)-3,3-diethyl-2,5-dimethylnonane 4.(S)-4-isopropyl-2-methylheptane 5.(R)-3,3,5-trimethyloctane 6.(1S,3R)-1-ethyl-3-methylcycloheptane 7.(1S,3S)-1-bromo-3-methylcyclohexane 8.(1S,3R)-1-ethyl-3-methylcyclopentane 9.(S)-3-chloro-1-pentane 10.Meso form of 3,5-heptanediol VI.Newman projection.Please answer the following questions regarding the following compounds.(13pts) http://ppt.cc/uH1o 1.Please draw the Newman projection of lowest energy conformer.(4) 2.In general, the _____conformation is lower in energy.(1) 3.Please provide estimates for the following interrations.(8) Please include units. A: B: C: D: http://ppt.cc/5vno VII.Chair Coformation.Please draw the more stable chair coformation for following compounds.(14pts) http://ppt.cc/o-IV VIII.Reaction Products.Please draw the skeletal strcture with lone pairs for the products of following reactions.(12pts) http://ppt.cc/TmBY --

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