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R-NH2 reacts with NaNO2 and HCl in the presence of 0-5°c. What is the product?
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+ Organic chemistry
+ Hydrochloric acid
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Marianne Komek
R-NH2 reacts with NaNO2 and HCl in the presence of 0-5°c. What is the product?
Obviously 1N HCl is more concentrated than 0.01 N HCl because 1 N HCl contains 36.5 g of HCl / litre of HCl solution as compared to 0.01N HCl which contains one tenth of HCl/ litre of HCl solution i.e., 3.65 g/ litre of HCl solution.
Obviously 1N HCl is more concentrated than 0.01 N HCl because 1 N HCl contains 36.5 g of HCl / litre of HCl solution as compared to 0.01N HCl which contains one tenth of HCl/ litre of HCl solution i.e., 3.65 g/ litre of HCl solution.
The methyl amine on reaction with (NaNO2+ HCl) HNO2 gives diazonium chloride which is too much unstable and react vigorously with water to formed methyl alcohol as major product.
The methyl amine on reaction with (NaNO2+ HCl) HNO2 gives diazonium chloride which is too much unstable and react vigorously with water to formed methyl alcohol as major product.
R-NH2 when reacts with NaNO2 and HCl in 0–5 degree Celsius forms diazonium salt which is unstable in warm conditions and so cold temperature is needed . The diazonium salts formed by aliphatic hydrocarbons are so unstable for further reaction that they give alcohol while the reactions with benzene diazonium salts can give chlorobenzene (sanmeyer reaction ,gatterman reaction) on adding CuCl2/HCl and Cu/HCl respectively and gives flourobenzene on reaction with HBF4 ( Baltz Schiemann Reaction) and also gives alcohol on reaction with water . It also gives just benzene on reaction with H3PO2 and alcohol or suitable reducing agent .
R-NH2 when reacts with NaNO2 and HCl in 0–5 degree Celsius forms diazonium salt which is unstable in warm conditions and so cold temperature is needed . The diazonium salts formed by aliphatic hydrocarbons are so unstable for further reaction that they give alcohol while the reactions with benzene diazonium salts can give chlorobenzene (sanmeyer reaction ,gatterman reaction) on adding CuCl2/HCl and Cu/HCl respectively and gives flourobenzene on reaction with HBF4 ( Baltz Schiemann Reaction) and also gives alcohol on reaction with water . It also gives just benzene on reaction with H3PO2 and alcohol or suitable reducing agent .
Obviously 1N HCl is more concentrated than 0.01 N HCl because 1 N HCl contains 36.5 g of HCl / litre of HCl solution as compared to 0.01N HCl which contains one tenth of HCl/ litre of HCl solution i.e., 3.65 g/ litre of HCl solution.
Obviously 1N HCl is more concentrated than 0.01 N HCl because 1 N HCl contains 36.5 g of HCl / litre of HCl solution as compared to 0.01N HCl which contains one tenth of HCl/ litre of HCl solution i.e., 3.65 g/ litre of HCl solution.
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The methyl amine on reaction with (NaNO2+ HCl) HNO2 gives diazonium chloride which is too much unstable and react vigorously with water to formed methyl alcohol as major product.
The methyl amine on reaction with (NaNO2+ HCl) HNO2 gives diazonium chloride which is too much unstable and react vigorously with water to formed methyl alcohol as major product.
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R-NH2 when reacts with NaNO2 and HCl in 0–5 degree Celsius forms diazonium salt which is unstable in warm conditions and so cold temperature is needed . The diazonium salts formed by aliphatic hydrocarbons are so unstable for further reaction that they give alcohol while the reactions with benzene diazonium salts can give chlorobenzene (sanmeyer reaction ,gatterman reaction) on adding CuCl2/HCl and Cu/HCl respectively and gives flourobenzene on reaction with HBF4 ( Baltz Schiemann Reaction) and also gives alcohol on reaction with water . It also gives just benzene on reaction with H3PO2 and alcohol or suitable reducing agent .
R-NH2 when reacts with NaNO2 and HCl in 0–5 degree Celsius forms diazonium salt which is unstable in warm conditions and so cold temperature is needed . The diazonium salts formed by aliphatic hydrocarbons are so unstable for further reaction that they give alcohol while the reactions with benzene diazonium salts can give chlorobenzene (sanmeyer reaction ,gatterman reaction) on adding CuCl2/HCl and Cu/HCl respectively and gives flourobenzene on reaction with HBF4 ( Baltz Schiemann Reaction) and also gives alcohol on reaction with water . It also gives just benzene on reaction with H3PO2 and alcohol or suitable reducing agent .
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It can also be used to produce alcohols from aliphatic amines.
It can also be used to produce alcohols from aliphatic amines.
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25 mL 0.75 M HCl contains (0.75/1000) x 25 = 0.01875 moles of HCl.
CaCO3 + 2 HCl → CaCl2 + H2O
2 moles HCl reacts with 100 g CaCO3.
0.01875 moles of HCl reacts with {(100/2) x 0.01875} g = 0.9375 g of CaCO3.
Hope, this helps.
25 mL 0.75 M HCl contains (0.75/1000) x 25 = 0.01875 moles of HCl.
CaCO3 + 2 HCl → CaCl2 + H2O
2 moles HCl reacts with 100 g CaCO3.
0.01875 moles of HCl reacts with {(100/2) x 0.01875} g = 0.9375 g of CaCO3.
Hope, this helps.
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Formation of Disonium salt takes place .
Formation of Disonium salt takes place .
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Amides reacts with NaNO2 + HCl and forms carboxylic acid, water,NaCl and evolves N2.
HCl + NaNO2 —→ HNO2 + NaCl
RCONH2 +HNO2 —→ RCOOH + N2 + H2O.
I hope this helps.
NOTE:
NaNO2+HCl is a very important reagent which can be used for the generation of the diazonium salts on reaction with amines.
Amides reacts with NaNO2 + HCl and forms carboxylic acid, water,NaCl and evolves N2.
HCl + NaNO2 —→ HNO2 + NaCl
RCONH2 +HNO2 —→ RCOOH + N2 + H2O.
I hope this helps.
NOTE:
NaNO2+HCl is a very important reagent which can be used for the generation of the diazonium salts on reaction with amines.
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