ffered. HN Paxil a. What is the absolute configuration at C-1 and C-2? C-1 R C-2R....
please help for part A, B, and C (a) Make models of the four 2-bromo-3-hydroxybutanal isomers. Accurately sketch them in the boxes. Use solid and dashed wedges where necessary. (2 pts) (b) For each isomer, draw a Newman projection for the most stable conformation of the C(2)-C(3) bond. (2 pts) (c) Use the RIS system to assign the absolute configuration of each chiral (stereogenic) center. (1 pt) Configuration? (2R, 3S) (2s, 3R (2S, 3S) (2R 3R) Configuration? (2R, 3S) (2S,...
What is the correct R/S configuration for each of the three stereocenters in the molecule below Choose the best term that best describes the relationship between this pair of molecules 1) What is the correct R/S configuration for each of the three stereocenters in the molecule below (1 mark) CH3 -ОН Н- -ОН Н- -OH Н- CH2CH3 a) 2R, 3S, 4R b) 2R, 3R, 4S c) 2S, 3R, 4R d) 2S, 3S, 4R е) 28, 3R, 4S 2) Choose the...
18. Assign the absolute configuration of the two stereocenters in stereoisomer of 2-bromo-3-pentanol shown below. Br ОН a) 2R, 3R b) 2R, 3S c) 2S, 3R d) 2S, 3S 19. The following are 5 stereorepresentations of 1,5-dimercaptopentane-1,5-diol. Taking (1) as a reference structure. Determine if each of the other stereorepresentations are conformers to (1), enantiomers to (1) and diastereomers of (1). OH OH Enantiomer Diastereomer Conformer HS SH (2) он SH Enantiomer Diastereomer Conformer OH OH HS "ОН (3) ON...
please explain 7. What is the configuration of the following compound? СН3 H-1-ci Cl-- CH2CH3 A) 2S, 3R B) 3R, 3S C) 2S, 3S D) 2R, 3R E) Can't do R and S; the compound is achiral.
explanations too pls! Will rate only if answers are complete What R and/or S configuration notation would be used for this structure? A) 2R, 3R B) 2S, 3R C) 2R, 3S D) 2S, 3S Which of the following is not an acyl derivative of a carboxylic acid? A) nitrile B) amide C) ester D) acid chloride Which of the following is not a common feature of both carboxylic acids and nitriles? A) Carbon atom with three bonds to an electronegative...
Justify your answer R = 2R R = 2R & R = R 2 The circuit above contains a battery with negligible internal resistance, a closed switch S, and three resistors, each with a resistance of R or 2R. a. i. Rank the currents in the three resistors from greatest to least, with number 1 being greatest. If two resistors have the same current, give them the same ranking. 1 A 3 B 2 Ic ii. Justify your answers. b....
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess. If R-3-bromo-2- methylhexane is -80 degrees, would a polarimetry reading of the mixture in this problem rotate light (3) clockwise (CW) or counterclockwise (CC) (8) Br Br 15% 85% (this question is worth 9 points, not 8 as stated in the picture) 1. determine enantiomeric excess (your answer should be a number) 2. determine whether excess is S or R. 3. Does the mixture...
Test# 2-Orgia Student Name 1) What is the degree of saturation of a bydrocarbon with molecular formula CoH0 A) 2 B)3 C)4 D) 5 E) 6 3) Muscalure, the sex attractant of the common housefly, is an acyclic alkene that has 23 carbons. How many hydrogens does it have? A) 23 B) 46 C) 25 D) 26 E) 48 4) How many degrees of unsaturation does a compound with molecular formula C1oH16 have? A) 1 B) 2 C) 3 D)...
The molecule shown in the picture is (-)-delta-9-tetrahydrocannabinol. a. What is the absolute configuration of the alkene? b. What is the absolute configuration of C 1? c. What is the absolute configuration of C 2? d. Is the compound levoratory or dextrotary? e. What is the name of the O containing functional group shown in the bottom part of the drawing? 앤 0 | 2. 1
Question 8 What is the configuration of C2 and C? НО, HO -H H a. 2R, 6R c. 25, 6R b. 2R, 6S d. 25, 6S H -CH2CH2C"" CHI н OH (a) (b) (c) (d)