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Suggest an arrow pushing mechanism for the ring closing metathesis
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- + NH₂ HO Ja'qub ||| Tamsulosin is a pharmaceutical used to treat an enlarged prostate. Choose the compound that would be suitable for preparing the necessary diastereomeric salts to purify the racemic mixture of tamsulosin shown below. OH IV НО. O OH OH NH₂ OH OH A) I B) II D) IV(b) Arrange the following in decreasing order of bond length and bond angle with explanation C2H6, C2H4, C2H2(b) (d) CH3 CH3CHCH₂CH₂CH₂Br SCH₂CH3 1. (NH₂)₂C=S 2. NaOH, H₂O H₂O2, H₂O, ? ?
- - с app.101edu.co Identify which of the following compounds is meso. I H₂CO H III H C H₂CO HCI Н A) 1 B) II Question 52 of 67 C) III D) IV OCH H₂CO "CH3 H C H CH₂ OCH₂ IV Н H₂CO H.C Н OCH, "H CH3 CH3 OCH₂ S В Subuestion 21 Complete the statement, "Cyclooctadeca-1,3,5,7,9,11,13,15,17-nonaene [C18H18] is O antiaromatic; reacts with Bromine Ononaromatic; more than 8 carbons antiaromatic; has 4n pi electrons O aromatic; has 4n+2 pi electrons nonaromatic;is nonplanar compound because itGive two syntheses for (CH3)2CH¬O¬CH2CH3, and explain which synthesis is better
- Draw the structures of the following derivatives :(i) Propanone oxime (ii) Semicarbazone of CH3CHO4G 4G illl 1:54 PM 43 ... 2. Name the following compounds: (c) CH3 CH3CHNH2 (a) (b) CH3CH2NHCH,CH3 N-CH3 (d) CH2CH3 (e) H CH3 H2NCH2CH2CHNH2Give IUPAC names for the following compounds: (a) CH3 (b) CH3 I CH3CHCH₂CH₂CH3 wbb CH3CH2CH3 CH3 (d) CH₂CH3 CH3 I I CH3CH₂CHCH₂CH₂CHCH3 (e) or to doo CH3CHCCH₂CH₂CH3 Ī CH3 CH3 CH2CH3 CH3CH2CH₂CHCH2CCH3 (c) H3C CH3 II CH3 (f) H3C CH3 IT CH3C-CCH₂CH₂CH3 I H3C CH3
- (b) Draw the structure of A, B, C, D and E (i) OH CH,CCH3 A ii. H3o* PCC / CH,Cl2 (ii) CH3CH2CH2OH conc HCI, ZnCI, CH;C(CH3)2 (iii) OHReaction of Zn/Hg; HCI ( Clemmensen conditions) with CH3CH2C(O)C6H5 forms ____ as the product. (a) CH3CHCHC6H5 (b) CH3CH2COOH and C6H5COOH (c) CH3CH2CH2OH and C6H5OH (d) CH3CH2CH(OH)C6H5 (e) CH3CH2CH2C6H5The structure of A is shown below. HO 3 -CH2CH=CH2 A (i) Predict the possible number of stereoisomers A can have. (ii) Draw the 3D structure of the (25, 3R, 5S) enantiomer showing its correct stereochemistry. (iii) Calculate the specific rotation of each enantiomer in a mixture containing 10 mL (0.10 M) of (2S, 3R, 55) enantiomer and 30 mL (0.10 M) of (2R, 3S, 5R) enantiomer. Given the specific rotation of the mixture = +4.8°.