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Cis-, trans- isomers to 2,3 dibromo-3-phenylpropanoic represents the (D,L) optical isomers (enantiomers) respectively. True False
Calculate the theoretical yield of 2,3-dibromo-3-phenylpropanoic acid in 0.7 mmol of trans-cinnamic acid in both mg and mmol.
The product was 2,3-dibromo-3-phenylpropanoic acid, with a melting point of 198-200 °C . So a racemic mixture of (2R,3S) and (2S,3R). Based on your knowledge of the bromination of alkenes, did this alkene behave like other alkenes, or was the mechanism different than what you expected? (1 pt) ОН NHBrz acetic acid NHBr Br 0 OH Br 2,3-dibromo-3- phenylpropanoic acid pyridinium bromide trans cinnamic acid pyridinium bromide perbromide
Q1.The structures below are: (2pts) A) Enantiomers B) Cis-trans isomers C) Structural isomers D) Both A and B
Provide the elimination mechanism (with arrows) of the formation of cis-2'-bromostyrene from 2,3-dibromo-3-phenylpropanoic acid in the presence of K2CO3 and the solvent acetone. Also provide the mechanism of KMNO4 on a TLC (thin later chromatography) plate and why colour change occurs
of each other. 36.) Glucose and galactose are A) anomers B) enantiomers C) epimers D) cis-trans isomers of D-glucose. 37.) D-galactose and D-talose are A) diastereomers B) epimers C) enantiomers D) cis-trans isomers
of each other. 36.) Glucose and galactose are A) anomers B) enantiomers C) epimers D) cis-trans isomers of D-glucose. 37.) D-galactose and D-talose are A) diastereomers B) epimers C) enantiomers D) cis-trans isomers
Bromine addition to trans-cinnamic acid produces four optical isomers with four chiral C-atoms. True False
Which can have cis/trans isomers? and why? (1). 1,2,3-trimethylcyclopropane (2.) 1,2-dimethylbenzene (3.) 2,3-dimethyl-4-decene
How many of the following compounds could exhibit cis/trans isomers? i. 2,3-dichloro-2-butene ii. 2,3-dimethyl-2-butene iii. dibromoethyne iv. (CH3),CHCH V. The monomer used to form: n Select one: O a. O O b.1 O c. 2 d. 3 e. 4 ОО 1.5
Cart B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 3 H HY Hmong CM 1 2. How many carbons in this compound are chiral, (bonded to 4 0 groups? 2 cox bons 3. Are the molecules superimposable? us, they axb. 4. Can this compound exist as a pair of enantiomers? 5. Which atom (according to IUPAC nomenclature) in the ring does the plane of symmetry cut in half? Carbon * 6. Draw trans-1,2-dibromocyclopentane and...