急求.ch3ch(br)ch3的消去产物和ch3ch2—ch2br的消去产物分别是什么？ 下列卤代烃能发生消去反应且消去产物唯一的是（ ）A．CH3...
CH2Br(Br)C(CH3)COOCH2CH3\u662f\u4ec0\u4e48\u4e1c\u897f\uff1f\u6c42\u5927\u795e\u89e3\u7b541\uff0c2\u4e8c\u6eb42\u7532\u57fa\u4e19\u9178\u4e59\u916f
\u5364\u4ee3\u70c3\u80fd\u53d1\u751f\u6d88\u53bb\u53cd\u5e94\u7ed3\u6784\u7279\u70b9\uff1a\u4e0e-X\u76f8\u8fde\u7684\u78b3\u539f\u5b50\u7684\u90bb\u4f4d\u78b3\u539f\u5b50\u4e0a\u5fc5\u987b\u6709\u6c22\u539f\u5b50\uff0eA\uff0eCH3Br\u4e0e-X\u76f8\u8fde\u7684\u78b3\u539f\u5b50\u7684\u90bb\u4f4d\u78b3\u539f\u5b50\u4e0a\u65e0\u6c22\u539f\u5b50\uff0c\u4e0d\u80fd\u53d1\u751f\u6d88\u53bb\u53cd\u5e94\uff0c\u6545A\u9519\u8bef\uff1b B\uff0e\uff08CH3\uff093CCH2Br\u4e0e-X\u76f8\u8fde\u7684\u78b3\u539f\u5b50\u7684\u90bb\u4f4d\u78b3\u539f\u5b50\u4e0a\u65e0\u6c22\u539f\u5b50\uff0c\u4e0d\u80fd\u53d1\u751f\u6d88\u53bb\u53cd\u5e94\uff0c\u6545B\u9519\u8bef\uff1bC\uff0e\uff08CH3\uff093CBr\u4e0e-X\u76f8\u8fde\u7684\u78b3\u539f\u5b50\u7684\u90bb\u4f4d\u78b3\u539f\u5b50\u4e0a\u6709\u6c22\u539f\u5b50\uff0c\u4e14\u4ea7\u7269\u552f\u4e00\uff0c\u6545C\u6b63\u786e\uff1bD\uff0eCH3CH2CHBrCH3\u4e0e-X\u76f8\u8fde\u7684\u78b3\u539f\u5b50\u7684\u90bb\u4f4d\u78b3\u539f\u5b50\u4e0a\u6709\u6c22\u539f\u5b50\uff0c\u6d88\u53bb\u53ef\u5f97\u5230CH3CH=CHCH3\u548cCH3CH2CH=CH2\u4e24\u79cd\u4ea7\u7269\uff0c\u6545D\u9519\u8bef\uff0e\u6545\u9009C\uff0e
卤代烃发生消去反应时，消去的是卤素原子以及与卤素所连碳相邻碳原子上的氢原子。根据这个原则，我们从这两个分子式就可以看出来，消去后的产物都只能是CH3-CH=CH2
两个消去反应的产物都一样，都是丙烯CH3-CH=CH2
绛旓細鍗や唬鐑冨彂鐢熸秷鍘诲弽搴旀椂锛屾秷鍘荤殑鏄崵绱犲師瀛愪互鍙婁笌鍗ょ礌鎵杩炵⒊鐩搁偦纰冲師瀛愪笂鐨勬阿鍘熷瓙銆傛牴鎹繖涓師鍒欙紝鎴戜滑浠庤繖涓や釜鍒嗗瓙寮忓氨鍙互鐪嬪嚭鏉ワ紝娑堝幓鍚庣殑浜х墿閮藉彧鑳芥槸CH3-CH=CH2
绛旓細鐢2-婧翠笝鐑峰埗1-婧翠笝鐑峰彲浠ュ垎涓ゆ鍒跺緱锛氱涓姝ワ細鍙互浣跨敤CH3CHBrCH3+NaOH鍦ㄩ唶鍋氭憾鍓傚姞鐑潯浠朵笅娑堝幓锛屽弽搴旂殑鍖栧鏂圭▼寮忎负锛欳H3CHBrCH3 鈥旀阿姘у寲閽犻唶婧舵恫鈫扖H2=CHCH3寰楀埌涓欑儻锛圕H2=CHCH3)銆傚啀鍒╃敤涓欑儻鍜屾捍鍖栨阿鍦ㄨ繃姘у寲鐗╁偓鍖栫殑鏉′欢涓嬪彂鐢熷姞鎴愶紝鍙緱1-婧翠笝鐑枫傚弽搴旂殑鍖栧鏂圭▼寮忥細CH3CH=CH2+HBr鈫扖H3C...
绛旓細1锛孨aOH姘存憾娑插叡鐑紝姘磋В鍙嶅簲锛堝彇浠ｅ弽搴旓級锛屽皢-Br鍩哄洟鎹㈡垚-OH 2.鍔犲己姘у寲鍓傚皢缇熷熀姘у寲鎴愮晶鍩猴紝鍙敤閰告ч珮閿伴吀閽炬憾娑层傚弽搴斿紡锛CH3CHBrCH3锛婲aOH鈫扖H3CHOHCH3锛婲aBr(鏉′欢锛氱澶翠笂鏂规爣H2O,涓嬫柟鏍団柍鍔犵儹绗﹀彿)2.CH3CHOHCH3鈫扖H3COOHCH3锛鏉′欢锛氱澶翠笂鏂规爣銆擮銆曪級PS:瀵逛簬楂樹腑鏁欐潗鑰岃█锛屽弽搴2涓鑸笉瑕佹眰...
绛旓細CH3CH(CH3)CHCLCH3 CH3-CH=CHCHBRCH3 渚濇嵁绯荤粺鍛藉悕鏂规硶锛岀粨鍚堝悕绉板啓鍑虹粨鏋勭畝寮忥紝3-鐢插熀-2-鎴婄儻鐨勭粨鏋勭畝寮忔槸锛欳H3CH=C锛CH3锛CH2CH3锛涘姞鍏ョ閰搁摱鐨勯唶婧舵恫锛岀湅鍒版矇娣鐢熸垚鐨勬槸4-婧-2-鎴婄儻锛屽姞鐑悗鐪嬪埌娌夋穩鐢熸垚鐨勬槸5-婧-2-鎴婄儻锛屾棤鐜拌薄鐨勬槸3-婧-2-鎴婄儻銆
绛旓細2-鐢插熀-3-婧翠竵鐑 纰充富閾捐鏈闀.
绛旓細CH3CH(OH)CH3+HBr鈫掋侰H3CHBrCH3鍗丠2O銆侰H3-CH(OH)-CH3+HBr---鈻---CH3-CHBr-CH3+H2O銆侰H3CH2CH2Br+NaOH--->CH3CH2CH2OH+NaBr(CH3)2CHBr+NaOH--->(CH3)2CHOH+NaBr銆
绛旓細CH3CHBrCH3+NaOH鈥旀按 鍔犵儹鈥>CH3CHOHCH3+NaBr+H2O
绛旓細涓ょ娑堝幓 涓棿娑堝幓 閮藉彲浠ョ殑 鍏抽敭鏄弽搴旂殑鐜鍜屾潯浠
绛旓細鍏堟秷鍘绘垚涓欑儻锛屼笝鐑姞婧达紝寰1锛2-浜屾捍涓欑兎锛屾皑鍩洪挔澶勭悊锛屽彂鐢熸秷鍘诲弽搴旓紝寰楀埌涓欑倲锛屼笝鐐斿姞婧村緱1锛1锛2锛2-鍥涙捍涓欑兎 涓欑倲鍔犱竴鍒嗗瓙婧村寲姘紝鍐嶅姞涓鍒嗗瓙纰樺寲姘 鍙傝冭祫鏂檋ttp://www.cnki.com.cn/Article/CJFD1999-FXJJ199905016.htm
绛旓細鏂规硶涓:姝ラ1锛 CH3-CH(Br)- CH3 + 2Li --> (CH3-CH(CH3))Li + LiBr 姝ラ2锛氭楠1浜х墿(CH3-CH(CH3))Li 涓 CuI鍙嶅簲鍚堟垚鍚夊皵鏇硷紙Gilman锛夎瘯鍓 [Cu(CH3-CH(CH3))2]Li 锛2 (CH3-CH(CH3))Li + CuI --> [Cu(CH3-CH(CH3))2]Li + LiI 姝ラ3锛 姝ラ2鎵鍚堟垚鐨勫悏灏旀浖璇曞墏涓 ...
