Giải bài 2 trang 229 - SGK môn Hóa học lớp 11 nâng cao

$\begin{align} & a)\,2C{{H}_{3}}CH(OH)C{{H}_{3}}\xrightarrow{{{H}_{2}}S{{O}_{4\text{đ}}},{{180}^{0}}C}{{(C{{H}_{3}})}_{2}}CHOCH{{(C{{H}_{3}})}_{2}}+{{H}_{2}}O \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(\text{đi isopropyl)} \\ & b)\,C{{H}_{3}}OH+{{H}_{2}}S{{O}_{4\,\text{?}}}\to {{(C{{H}_{3}})}_{2}}S{{O}_{4}}+2{{H}_{2}}O \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(\text{đimetyl sunfat)} \\ & c)\,C{{H}_{3}}CH(C{{H}_{3}}-OH+HBr\to C{{H}_{3}}CH(C{{H}_{3}})-Br+{{H}_{2}}O \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(\,isopropyl\,bromua\text{)} \\ & d)\,{{(C{{H}_{3}})}_{2}}CH-C{{H}_{2}}-C{{H}_{2}}OH\xrightarrow{{{H}_{2}}S{{O}_{4\,\text{?}}}}{{(C{{H}_{3}})}_{2}}CH-CH=C{{H}_{2}}+{{H}_{2}}O \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(3-metyl\,but-1-en\text{)} \\ \end{align}$

Ghi nhớ:

Các ancol khi có xúc tác  $H_2SO_4$ đặc ở $140^oC$. thì xảy ra phản ứng tạo ete.

Các ancol khi có xúc tác  $H_2SO_4$ đặc ở $180^oC$. thì xảy ra phản ứng tách nước tạo anken.