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1、第12章习题答案1.(1)5-硝基-2-呋喃甲醇(2)N-甲基四氢吡咯(3)2-氯噻吩(4)α,β-吡啶二甲酸(5)5-甲基-2,4-二羟基嘧啶(6)5-硝基噻唑(7)4-甲氧基-3-吲哚甲酸(8)8-羟基喹啉(9)2-氨基-6-羟基嘌呤2.(1)(2)(3)(4)(5)(6)(7)(8)(9)3.(1)六氢吡啶>氨>吡啶>苯胺>吡咯(2)苄胺>吡啶>苯胺>吲哚、4.(1)(2)(3)locatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheassassination.
2、Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame9(4)(5)(6)(7)(8)(9)5.答:生物碱是存在于生物界的一类含氮有机化合物,具有强烈的生理活性,大多数具有复杂的含氮杂环结构、具有碱性。生物碱的提取既要考虑生物碱的存在形式,又要考虑生物碱的性质,可以采用酸水提取法或有机溶剂提取法进行提取。6.(1)答:吡啶具有碱性,加入
3、盐酸溶液洗涤,吡啶生成盐酸盐与甲苯分层,用分液漏斗分离。(2)答:噻吩在室温下可直接与浓硫酸发生磺化反应。用浓硫酸反复萃取含有噻吩的苯,噻吩磺化后溶于硫酸与苯分离。7.(1)(2)locatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomis
4、sedfatal,whennightcame98.第13章习题答案1.(1)(2)(3)(4)(5)(6)(7)(8)2.(1)对映体,不是差向异构体(2)不是对映体,是差向异构体(3)不是对映体,是差向异构体(4)不是对映体,是差向异构体3.(1)β-L-葡萄糖(2)α-D-果糖(3)麦芽糖(4)纤维素locatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemaster
5、s(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame94.(1),(4),(5)没有变旋现象。5.只有(2)可以将菲林试剂还原,因为它有苷羟基可以转化为开链式结构,有醛基可以还原菲林试剂。6.(1)(2)(3)(4)7.(1)(2)(3)locatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang
6、,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame9(4)(5)(6)8.9.10.11.答:DNA和RNA在结构上有两点差别。第一,DNA中是脱氧核糖,RNA中是核糖;第二,DNA中的碱基没有脲嘧啶(U),RNA中的碱基没有胸腺嘧啶(T)。locatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheas
7、sassination.Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame912.第14章习题答案1.(1)(CH3)2CHCH2CH(NH2)CO-NH-CH2COOOH(2)(3)(4)2.(1)(2)(3)(4)(5)(6)locatedintheTomb,DongShenJiabang,deferthenextdayfocu
8、sedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetom