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Sintez usullari. Quyida aldegid va ketonlar sintez qilishning ayrim laboratoriya usullari bilan tanishib chiqamiz. Ularning ko’pchiligi bizga ma’lum. Ayrim usullar oksidlash yoki qaytarish reaktsiyalariga asoslangan bo’lib, spirtlar, uglevodorodlar yoki xlorangidridlardan al- degid va ketonlaprga o’tish yo’llaridir 34 .
Aldegidlarni sintez qilish usullari
34 T.W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder. Organic chemistry. University of South Florida, Pacific Lutheran University, Columbia University. 2014. – S.725 2 2 . . M M e e t t i i l l b b e e n n z z o o l l l l a a r r n n i i o o k k s s i i d d l l a a s s h h A A r r C C H H 3 3 C C l l 2 2 , , q q i i z z d d i i r r i i s s h h C C r r 2 2 O O 7 7 , , s s i i r r k k a a a a n n g g i i d d r r i i d d i i A A r r – – C C O O H H m m i i s s o o l l l l a a r r : : A A r r C C H H C C l l 2 2 A A r r C C H H ( ( O O O O C C C C H H 3 3 ) ) 2 2 H H 2 2 O O H H 2 2 O O – – C C H H 3 3 C C l l 2 2 q q i i z z d d i i r r i i s s h h v v a a y y o o r r u u g g ’ ’ l l i i k k – – C C H H C C l l 2 2 H H 2 2 O O C C a a C C O O 3 3 – – C C H H O O n n - - b b r r o o m m t t o o l l u u o o l l n n - - b b r r o o m m b b e e n n z z a a l l x x l l o o r r i i d d n n - - b b r r o o m m b b e e n n z z a a l l d d e e g g i i d d B B r r – – B B r r – – B B r r – – – – C C H H 3 3 – – C C H H ( ( O O C C O O C C H H 3 3 ) ) 2 2 H H 2 2 O O H H 2 2 S S O O 4 4 – – C C H H O O n n - - n n i i t t r r o o t t o o l l u u o o l l n n - - n n i i t t r r o o b b e e n n z z a a l l d d e e g g i i d d O O 2 2 N N – – C C r r 2 2 O O 7 7 , , ( ( C C H H 3 3 C C O O ) ) 2 2 O O O O 2 2 N N – – O O 2 2 N N – – 1 1 . . B B i i r r l l a a m m c c h h s s p p i i r r t t l l a a r r n n i i o o k k s s i i d d l l a a s s h h R R C C H H 2 2 O O H H C C u u , , q q i i z z d d i i r r i i s s h h K K 2 2 C C r r 2 2 O O 7 7 R R – – C C O O H H m m i i s s o o l l l l a a r r : : C C H H 3 3 C C H H 2 2 C Download 29.83 Mb. Do'stlaringiz bilan baham: |
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