问题14.17合成三肽甘氨酰缬氨酰苯丙氨酸。 答案 H OCC H2N COOH DCC H2N BnOOCHN CONH+COOH 问题14.18如何合成下列化合物? ≥=cH2(2) >CH=CHCH3 答案 (1)(C6H5)3P +CH3Br (CgHs)3PCH (C6H5)3P=CH2 CHO 2cHP+cHHp→ (CHs) PCHzCH,BP n-BuLi →(CeH5)3P=CH2CH 问题14.19合成下列化合物: (1)(CH3CH2O)3P=O (2)CH3 CH2,P(OCH2 CH3h (3)(CH3CH,O)), COOCH,CH3 PCL 3CH3 CH2OH (2)(CH3CH2O)3P=0 CH3 CH2 CH2Br (3)(CH3CH2O)3P=0 BrCH2COOC2Hs 习题 命名下列化合物:问题 14.17 合成三肽甘氨酰缬氨酰苯丙氨酸。 答案: H2N COOH H H OCOCl BnOOCHN COOH H H H2N COOH H DCC BnOOCHN CONH H H COOH H H2N COOH H Bn DCC T.M. 问题 14.18 如何合成下列化合物？ CH2 CH CHCH3 (1) (2) 答案： (1) O (C6H5)3P + CH3Br (C6H5)3PCH3Br n-BuLi (C6H5)3P=CH2 (2) (C6H5)3P + CH3CH2Br (C6H5)3PCH2CH3Br n-BuLi (C6H5)3P=CH2CH3 CHO 问题 14.19 合成下列化合物： (CH3CH2O) (1) 3P O (2) CH3CH2CH2P(OCH2CH3)2 O (3) (CH3CH2O)2PCH2COOCH2CH3 O 答案： (1) PCl3 + 3CH3CH2OH (CH3CH2O) (2) 3P O + CH3CH2CH2Br (3) (CH3CH2O)3P O + BrCH2COOC2H5 习题 命名下列化合物：