2019年2月7日 · $\ce {POCl3}$ is a reagent well-known for enacting various functions in organic synthesis. For example, together with pyridine, it is able to dehydrate alcohols to give alkenes. Also, reacting it with a substituted amide gives chloromethyleneiminium ions.

2017年2月22日 · As far as I know, $\ce{POCl3}$ has not been seen following an $\mathrm{SN_i}$ mechanism (even without pyridine). Why? If possible, please provide a qualitative mechanistic reason. Something that is readily explained by waving hands. Regardless of whether such an approach is achievable, quantitative (calculational) answers are also most …

* Question Completion Status: O QUESTION 4 In Lewis structures central atom(s) is/are atom(s) a. that can form the most number of bonds Ob. that can form the least number of bonds O c. aoms that is closer to Group 8A QUESTION 5 In drawing …

Suppose a 500. mL flask is filled with 1.6 mol of H₂ and 0.30 mol of HI. This reaction becomes possible: H₂(g) + 12₂(g) → 2HI(g) Complete the table below, so that it lists the initial molarity of each compound, the change in molarity of each compound due to the reaction, and the equilibrium molarity of each compound after the reaction has come to equilibrium.

Solution for PCl5(s) + H2O(g) ⇄ 2HCl (g) + POCl3 (g) Keq= 11 At equilibrium the 4.0L flask contains the indicated amounts of the three chemicals.

The ΔG°f values for POCl3(g) and PCl3(g) are -502 kJ/mol and -270. kJ/mol,respectively.b. Is this reaction spontaneous under standard conditions at 298 K?c. The value of 6S' for this reaction is 179 J/K mol .At what temperaturesis this reaction spontaneous at standard conditions?

Use the data shown below, to calculate AH°rxn and AS°rxn at 25°C for the following reaction: 3 H₂(g) + Fe₂O₂(s) → 2 Fe(s) + 3 H₂O(g) What is the value of AGᵒrxn at 25°C?

Predict the electron pair geometry and the molecular structure of each of the following: (a) IOF5 (I is the central atom) (b) POCl3 (P is the central atom) (c) Cl2SeO (Se is the central atom) (d) ClSO+ (S is the central atom) (e) F2SO (S is the central atom) (f) NO2− (g) SiO4 4−

The illustration to the left represents a mixture of nitrogen (blue) and oxygen (red) molecules. If the molecules in the above illustration react to form N₂O4 according to the equation N₂ + 20₂→→→→→→→ N₂O4, the limiting reagent is the number of N₂04 molecules formed is and the number of molecules in excess is

2017年3月15日 · The reaction of the DMC i.e. Dimethyl formamide (which is basically an amide) with $\ce{POCl3}$ produces an iminium cation. 2. Aromatic Electrophilic Substitution Reaction: The formed iminium cation now act as an electrophile and does electrophilic aromatic substitution as a result of which we get an aryl ketone or an aryl aldehyde.