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Консультация № 195408
29.04.2019, 00:16
0.00 руб.
1
5
1
Здравствуйте! У меня возникли сложности с таким вопросом:
Решить пункт 4.
Решить пункт 4.
Прикрепленные файлы:
Обсуждение
02.05.2019, 21:01
общий
это ответ
Здравствуйте, svrvsvrv!
Надеюсь, я не сильно ошибусь, предположив, что заданную цепочку превращений можно выполнить следующим образом.
1. Целлюлоза [$8594$] глюкоза
(C6H10O5)n+(n-1)H2O[$8594$]nC6H12O6.
2. Глюкоза [$8594$] этанол
C6H12O6[$8594$]2C2H5OH+2CO2[$8593$].
3. Этанол [$8594$] 1, 2-дибромэтан
4. 1, 2-дибромэтан [$8594$] этиленгликоль
(CH2Br)2+2NaOH[$8594$](CH2OH)2+2NaBr.
5. Этиленгликоль [$8594$] 2-хлорэтанол-1
(CH2OH)2+HCl[$8594$]CH2ClCH2OH+H2O.
В крайнем случае меня поправят.
Надеюсь, я не сильно ошибусь, предположив, что заданную цепочку превращений можно выполнить следующим образом.
1. Целлюлоза [$8594$] глюкоза
(C6H10O5)n+(n-1)H2O[$8594$]nC6H12O6.
2. Глюкоза [$8594$] этанол
C6H12O6[$8594$]2C2H5OH+2CO2[$8593$].
3. Этанол [$8594$] 1, 2-дибромэтан
4. 1, 2-дибромэтан [$8594$] этиленгликоль
(CH2Br)2+2NaOH[$8594$](CH2OH)2+2NaBr.
5. Этиленгликоль [$8594$] 2-хлорэтанол-1
(CH2OH)2+HCl[$8594$]CH2ClCH2OH+H2O.
В крайнем случае меня поправят.
5
Спасибо.
Об авторе:
Facta loquuntur.
Facta loquuntur.
03.05.2019, 11:40
общий
Адресаты:
C2H5Br+HBr[$8594$](CH2Br)2+H2O
Вы что-то тут напутали, даже по атомам не сходится
В принципе, здесь можно было бы использовать бром, однако повторное галогенирование преимущественно протекает по уже замещённому атому углерода, и основным продуктом будет 1,1-дибромэтан.
Поэтому наиболее верный вариант - бромирование этилена, приведённое на картинке
03.05.2019, 12:07
общий
Адресаты:
Обратите, пожалуйста, внимание на исправление в третьей реакции.
Об авторе:
Facta loquuntur.
Facta loquuntur.
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