Hemi acetal is compound in which an alcohol(-OH) and ether(-OR) is connected to the same carbon atom.
The same carbon contains -OH group and -OR group.
For eg :
@Option-A : The functional groups attached to the same carbon are ether.So this is not hemiacetal.
@Option-B : Here the functional groups are attached to two different carbons,So this isn't hemiacetal.
@Option-C; Here also, the functional groups are attached to two different carbons,so this isn't hemiacetal.
@Option-D : As -OH and -OCH3 attached to the same carbon. So this is hemiacetal.
What is the product of the following reaction? ОН CH,OH, H ОН OCH, Осн. ОН ОН 0 H,CO. он ОН Осн. ОН Осн. || IV Multiple Choice у III
4... Which structure or structures represent the enantiomer of the following molecule? он OCH он он он он H3COli OCH Осн; mOCH Br Br Brl I IV II III a l d. IV e I and V b II C.ID
What is the product of the nucleophilic substitution reaction shown below? Br + сн,он OCH, "Осн.
Is this mecanisme correct Is methanol the leaving group?
OCH нсон Осн. -Меон :он HO- но он Pho- Н,Со ног о HT ного н,со- ° но но он со но- но он -Меоно но он Ph= -н- Ph= -о и но со он но он
Which intermediate is involved in the mechanism of this base-promoted hydrolysis? о ОН HO -d-oCH,сну - (А) *CH-CH, (В) OCH CH3 (С) -2-осн,сн, ОН ОН (D) -c-oCH,CH,
CH3OCH OCH3 CH3O н OCH HOCH, OCH3 Н. Н он он ОНОСН, OCH3 н CH30 OCH ОНОСН, ОН н H ОН ОСН,ОСН. с Question 17 (2.5 points) ОНО огон ОН ОН но Previous Page Next Page Page Submit Quiz 10 of 20 questions saved Question 18 (2.5 points) ? - NHUB Br १२२ ON OHHANE HON Previous Page Next Page Submit Quiz 10 of 20 questions saved
which of the following is a hydrate ?
ОН ОН - OCH3 ОН OCH 0 ОН
Which of the following is an acetal? OCH, ОН ОСНЫ ОН он- ОН -5
Which of the following are hemiacetals? Which of the following are acetals? Drag the appropriate items to their respective bins. Reset He ОН ОН CH3-C-CHE OCH CH3-C-CH.CH ОСН, ОСН, CH, -с-н ОСН, OCH,CH, Сн,-C-H OCH,CH, он ОСН, CH3-C-CH, ОСН, CH,-с-н ОСН, Hemiacetals Acetals
Predict the major product for the following reaction. HNOJHSO осн. O Осно, OCH, O OCH о осны NO2 „.NO NO, NO, ON