38.) Which of the following is a pyranose ring? CH OH CH,Ho H OH OH Індон...
39.) In the pyranose form of D-glucose, the-OH on the anomeric carbon atom in the a-form is to carbon 6, while in the B-form it is to carbon 6. A) trans, cis B) cis, trans C) trans, trans D) cis, cis
40.) Which of the following represents a ß-anomer? CH2OH CH OH CH OH OH OH OH OH 해 CH2OH IH OH A) I and II only B) II and III only C) I and III only. D) I, II and III are all B-anomers.
40.) Which of the following represents a ß-anomer? CH2OH CH OH CH OH OH OH OH OH 해 CH2OH IH OH A) I and II only B) II and III only C) I and III only. D) I, II and III are all B-anomers.
5 a) identify the anomeric carbon in the below molecule b) identify the thpe of ring pyranose or furanose c) identify if it is a or b 6 a) identify the anomeric carbon in the below molecule b) identify the thpe of ring pyranose or furanose c) identify if it is a or b 7 The structure of 6-carbon ketose sugar is shown. Draw the common cyclic structure of this structure (both a and b form) 8 Identify the relationship...
1. Below is a monosaccharide in its cyclic (ring) form. OH он Linear form OH a) Is the monosaccharide the a-or the B-anomer? b) Label each carbon with its carbon number. c) Draw the linear form of this monosaccharide with the correct chirality in the box at right. 2. a) Draw the linear form of D-ribose: b) Ribose can form a pyranose ring. Draw an electron arrow on your linear ribose drawing above, indicating which nucleophile attacks which electrophile to...
5. Glucose can form two different ring structures as shown. Draw a mechanism to show how each is formed (don't worry about the stereochemistry around the anomeric carbon) он CHO HO HO он OH но OH он pyranose form of D-glucose OH CH2OH HO D-glucose HO но он он furanose form of D-glucose
six questions plz help i leave rating The missing product from the following reaction is OH NaOH + H20 COH Co Na* H A OrNa* A B C D Question 28 What is the name of the following ether compound? • Previous Which carbon is the alpha, a, carbon? I HO III II IV 11 III IV EXC o Na OH O" Na O Na OH Na Is this monosaccharide a Dor L sugar? CH2OH C=0 H ОН H ОН...
the data is not wrong 3. HO-CH-CHOH-CHOH-CH-CH2OH This is a(n) (A) nonreducing sugar (B) aldonic acid (C) aldohexose (D) pyranose HOCH 4. HO H,0* HO CH,CH2OH HO OH HOCH, HOCH, HO HO OCH.CH + HO- HO HO HO OCH.CH I II The product/products of this reaction is/are (A) I (B) II (C) I and II (D) neither
Question 5 (of 31 00 points Select the keyword or phrase that will best complete each sentence. Key terms: is a carbohydrate that has the OH group on the chirality L a anomer center farthest from the carbonyl on the right. -glycoside A(n) is the cyclic form of a D-monosaccharide that contains a hemiacetal with the OH group drawn up, above the ring Banomer B-glycoside D-monosaccharide Ain) is a monosaccharide with the OR group on the anomeric carbon oriented below...
Which of the following reaction conditions would specifically target the anomeric carbon of the pyranose below: OH CH OH 20 НО. он HO cal. HCI H20 PaC, H2 II BnBr, NaH DMF, heat III TBDPSCI AgNO, IV HIO CH,COCH, cat. H,SO V cat. HCI CH,OH VII Pd/Baso H VIII VI O VI O O O VII O IV OV VII