The last part of the synthesis is to assemble moieties 8 and 11a together. N. НО HN P-O HCI (aq) 12 11 a "CN "CN HƠ он 1 8 5a. During the formation of compound 12, an inversion of stereochemistry has occurred. Note that 11a is a single stereoisomer of 11.
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- Organotin compounds play a significant role in diverse industrial applications. They have been used as plastic stabilizers and as pesticides or fungicides. One method used to prepare simple tetraalkylstannanes is the controlled direct reaction of liquid tin(IV) chloride with highly reactive trialkylaluminum compounds, such as liquid triethylaluminum (Al(CzHs)3). 3SnCl4 + 4Al(C2H5)3 → 3Sn(C2H5)4 + 4AlCl3 In one experiment, 0.160 L of SnCl4 (d= 2.226 g/mL) was treated with 0.346 L of triethylaluminum (Al(C2H5)3); d = 0.835 g/mL). What is the theoretical yield in this experiment (mass of tetraethylstannane, Sn(C2H5)4)? If 0.257L of tetraethylstannane (d= 1.187 g/mL) were actually isolated in this experiment, what was the percent yield?We are currently working with diastereomeric products of acid-base reactions in my organic chemistry class and while I understand the basics of the creation of selectively soluble salt products, drawing the reactions has always been difficult. Our prelab asks us to "draw the expected diasteromeric products from the reaction of racemic phenylsuccinic acid with excess (s)-methylbenzylamine and label the chiral centers" I would really appreciate some help with this!EXPLAIN BY WORDS IN ORDER FOR ME TO UNDERSTAND THE GENERAL REACTION SCHEME. IN THIS CROSS-COUPLING REACTION WHICH ORGANOHALIDE (R-X) REACTS WITH ORGANOBORANE [R1B(OR)2].
- The carbocation electrophile in a Friedel-Crafts reaction can be generated in ways other than by reaction of an alkyl chloride with AlCl3. For example, reaction of benzene with 2-methylpropene in the presence of H3PO4 yields tert-butylbenzene. Draw a structure for the electrophile.Organotin compounds play a significant role in diverse industrial applications. They have been used as plastic stabilizers and as pesticides or fungicides.One method used to prepare simple tetraalkylstannanes is the controlled direct reaction of liquid tin(IV) chloride with highly reactive trialkylaluminum compounds, such as liquid triethylaluminum (Al(C2H5)3). 3SnCl4 + 4Al(C2H5)3 3Sn(C2H5)4 + 4AlCl3 In one experiment, 0.230 L of SnCl4 (d = 2.226 g/mL) was treated with 0.396 L of triethylaluminum (Al(C2H5)3); d = 0.835 g/mL). If 0.335 L of tetraethylstannane (d = 1.187 g/mL) were actually isolated in this experiment, what was the percent yield?what is the Nature of the leaving group (LG)? 5. what is the relative size of activation energy (Ea) for each reaction? 6. what is the Hammond's postulate? 7. what are the Relative thermodynamic stability of the reactive intermediates? 8. what is Influence of the solvent (if given) on the reactions and intermediates?
- What is the best way to turn benzene into the following product? Would friedel-crafts alkylation followed by some sort of nitration work or would that be too low yield?Organotin compounds play a significant role in diverse industrial applications. They have been used as plastic stabilizers and as pesticides or fungicides. One method used to prepare simple tetraalkylstannanes is the controlled direct reaction of liquid tin(IV) chloride with highly reactive trialkylaluminum compounds, such as liquid triethylaluminum (Al(C2H5)3). 3SnCl4 + 4AI(C2H5)3 →3Sn(C2H5)4 + 4AlCl3 In one experiment, 0.160 L of SnCl4 (d = 2.226 g/mL) was treated with 0.346 L of triethylaluminum (Al(C2H5)3): d = 0.835 g/mL). What is the theoretical yield in this experiment (mass of tetraethylstannane, Sn(C2H5)4)? If 0.257 L of tetraethylstannane (d= 1.187 g/mL) were actually isolated in this experiment, what was the percent yield?which newman projection displays the proper antiperiplanar orientation for an E2 elimination of the reaction sequence below
- Explain the Summary of Alkyl Halides and SN1, SN2, E1, and E2 Mechanisms ?During Friedel Crafts Acylation , Why does AlCl3 have to be anhydrous??Explain the following result. Although alkenes are generally more reactive than alkynes towards electrophiles, the reaction of Cl2 with but-2-yne can be stopped after one equivalent of Cl2 has been added.