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- Pyridine exhibits a UV transition of the type n at 270 nm. In this transition, one of the unshared electrons on nitrogen is promoted from a nonbonding MO to a (antibonding) MO. What is the effect on this UV peak if pyridine is protonated?Provide the neccessary reagents next to the arrowsPropose a mechanism for the followingreaction.
- Do not give handwriting solution. please draw out what compound A is and then provide aroow pushing mechanism for thisreaction! thanks01 Cive the ctrientiono of Comnand 4 2.2 Provide a reasonable arrowpushing mechanism for the reaction in 2.1Propose curved arrow mechanisms for transformations below.Synthesize Novocaine from benzene and any other reagents of four carbons or fewer
- Provide the products for each molecule illustarated.select the most appropriate reagent(s) to effect the change. 1. Disiamylborane, 2. HO–, H2O, H2O2 H2, Pd K2Cr2O7, H+ NaOCl H2SO4, HgSO4Organotin 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?
- 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?Although diazomethane (CH2N2) is often not a useful reagent forpreparing cyclopropanes, other diazo compounds give good yields ofmore complex cyclopropanes. Draw a stepwise mechanism for theconversion of diazo compound A to B, an intermediate in the synthesisof sirenin, the sperm attractant produced by the female gametes of thewater mold Allomyces.Bromide Bhas normal activity (for a secondary bromide) towards SN1 substitution, but A has much higher reactivity and Chas much lower reactivity.