Question

Select the correct answer. 1a. The two given structures are an example of which type of stereoisomerism? epimers 0 anomers H-C-OH H-(-OH H-C-OH H-<-OH CH2OH HO-C-H H-Ć-OH H-C-OH -ċ-OH diastereomers enantiomers CH2OH 1b. The diagram below represents the kinetic mechanism for this type of bisubstrate reaction... ordered sequential concerted (EAB)(EPO) ping-pong o random sequential

Answer 1

31 41 -2 epimer I.a. Heco Haco 400 H "H3C- OH H-C-OH 4e not H-C-0H HEC-OH H-C- OH 6C4,04 CH₂OH The two given structures are an example of epimers. we know that when two mono sachharides differ from one another in configuration at only one (chiral center) asymmetric atom, they are called epimerot. when two monosachharide & differ from one another in the configuration at their anomeric carbon, then these are called anomer. It happens mainly in case of Cyclic molecules. when two stereoisomers have mirror image relationship, then there are called enantiomer. when two stereoisomers have no mirror image relationship then there are called diastereomer. Here, the monocachharides are differe in only one assymmetric center (C-2). So, it is ce epimer. & They have no mirrorimage relationship, so not enantioner. It has es anomeric carbon, that is acho, they are some in the view of anomeric carbon. so, they are not anomer. A B p. 9 lob. (EAB) (EPO) 1 / TEB P LEPI BH & T It is a random Sequential mechanism. E Because random order of reacfants binding and products leaving . ordered sequential E EA (CAB) CEPQ) Eg Ē CE A CED) 6 °CE 'B)(£8)' Ē noorted A B