The reactants are cyclopentanone and 4-methoxybenzaldehyde In the mechanism for the double adol condensation of (2E,5E)-2,5-bis(4-methoxybenzylidene)cyclopenanone...
The reactants are cyclopentanone and 4-methoxybenzaldehyde
In the mechanism for the double adol condensation of (2E,5E)-2,5-bis(4-methoxybenzylidene)cyclopenanone using hydroxide as the base, does hydroxide act as a true catalyst? why?
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The reactants are cyclopentanone and 4-methoxybenzaldehyde
In the mechanism for the double adol condensation of
(2E,5E)-2,5-bis(4-methoxybenzylidene)cyclopenanone...
Aldehyde: ZPA Ketone: BCK Amount of material started with: 2 mL of aldehyde and 0.5 mL...
Aldehyde: ZPA
Ketone: BCK
Amount of material started with: 2 mL of aldehyde and 0.5 mL
of Ketone
Recrystallized Mass: 1.53 g
Melting Range: 196-200 C
Recrystallization Solvent: 9:1 Ethanol/Acetone
Aldehydes ketones Cyclopentanone Cyclohexanone Acetone Benzaldehyde p-tolualdehyde p-anisaldehyde Cinnamaldehyde 113 °C 175 °C 129-130 C 144 °C 189 °C 235-236 °C 212 °C 225 °C 118°C 170 °C 159 °C 180°C 4-methyl cyclohexanone 98-99 °C 113-113.5 °C 141-142 °C 163-164 °C 6.1724 7.6069 7.5891 Z-8, CDC13 Z-B, CDC13 7.2839 2724...
Aldehyde: ZPA Ketone: BCK Amount of material started with: 2 mL of aldehyde and 0.5 mL...
Aldehyde: ZPA
Ketone: BCK
Amount of material started with: 2 mL of aldehyde and 0.5 mL
of Ketone
Recrystallized Mass: 1.53 g
Melting Range: 196-200 C
Recrystallization Solvent: 9:1 Ethanol/Acetone
please ans 1 and 2 (label ans).
UNKNOWN KETONE IS CYCLOPENTAONE
UNKOWN ALDEHYDE IS 4-methoxybenzaldehyde
4 457 05 1267 0 1278 49 LP 00051 BL000 BCK 6 PER 12 160 TESIS Ota TL 6201 11 ESTI 29 TEZE LT SELF 09 200 18 DIL 0 ore 1400 28 2004 25...
Experimental Outline In its simplest form, the aldol condensation is a self-addition involving tw...
Organic Chemistry 2
Experimental Outline In its simplest form, the aldol condensation is a self-addition involving two molecules of the same aldehyde or ketone, in the presence of a base, and results in the formation of a new carbon-carbon bond joining the carbonyl carbon of one molecule to the a-position of the second. In many cases - if the reaction conditions aren't sufficiently mild - the initially formed aldol product reacts further in an elimination reaction to give what is...
Microscale techniques: In today's experiment we will be using very small amounts of chemical reactants. This...
Microscale techniques: In today's experiment we will be using very small amounts of chemical reactants. This method is generally less expensive and more environmentally-friendly than traditional "test tube" chemistry. Some of the waste products produced in today's experiment, particularly those containing lead and barium, are harmful to the environment. By using such small amounts of chemical reactants we generate far less waste than by using larger scale methods. Procedure 1. Put on your safety goggles. Be sure to wear them...
Process A. Preparation of 4-t-butylcyclohexene Assembling the equipment Fill the almost complete sand bath, place it...
Process A. Preparation of 4-t-butylcyclohexene Assembling the equipment Fill the almost complete sand bath, place it on the base of the shelf, fix the thermometer with a clip and start heating until the temperature of the sand is - 110C. B. Mixing the reagents Using the plastic funnel, introduce 0.60-0.70 g of 4-t-butylcyclohexanol into a large, clean, dry test tube. Then add 10 drops of concentrated phosphoric acid, 3 drops of concentrated sulfuric acid and a pebble to moderate boiling....
Aldehyde: ZPA
Ketone: BCK
Amount of material started with: 2 mL of aldehyde and 0.5 mL
of Ketone
Recrystallized Mass: 1.53 g
Melting Range: 196-200 C
Recrystallization Solvent: 9:1 Ethanol/Acetone
Aldehydes ketones Cyclopentanone Cyclohexanone Acetone Benzaldehyde p-tolualdehyde p-anisaldehyde Cinnamaldehyde 113 °C 175 °C 129-130 C 144 °C 189 °C 235-236 °C 212 °C 225 °C 118°C 170 °C 159 °C 180°C 4-methyl cyclohexanone 98-99 °C 113-113.5 °C 141-142 °C 163-164 °C 6.1724 7.6069 7.5891 Z-8, CDC13 Z-B, CDC13 7.2839 2724...
Aldehyde: ZPA
Ketone: BCK
Amount of material started with: 2 mL of aldehyde and 0.5 mL
of Ketone
Recrystallized Mass: 1.53 g
Melting Range: 196-200 C
Recrystallization Solvent: 9:1 Ethanol/Acetone
please ans 1 and 2 (label ans).
UNKNOWN KETONE IS CYCLOPENTAONE
UNKOWN ALDEHYDE IS 4-methoxybenzaldehyde
4 457 05 1267 0 1278 49 LP 00051 BL000 BCK 6 PER 12 160 TESIS Ota TL 6201 11 ESTI 29 TEZE LT SELF 09 200 18 DIL 0 ore 1400 28 2004 25...
Organic Chemistry 2
Experimental Outline In its simplest form, the aldol condensation is a self-addition involving two molecules of the same aldehyde or ketone, in the presence of a base, and results in the formation of a new carbon-carbon bond joining the carbonyl carbon of one molecule to the a-position of the second. In many cases - if the reaction conditions aren't sufficiently mild - the initially formed aldol product reacts further in an elimination reaction to give what is...
Microscale techniques: In today's experiment we will be using very small amounts of chemical reactants. This method is generally less expensive and more environmentally-friendly than traditional "test tube" chemistry. Some of the waste products produced in today's experiment, particularly those containing lead and barium, are harmful to the environment. By using such small amounts of chemical reactants we generate far less waste than by using larger scale methods. Procedure 1. Put on your safety goggles. Be sure to wear them...
Process A. Preparation of 4-t-butylcyclohexene Assembling the equipment Fill the almost complete sand bath, place it on the base of the shelf, fix the thermometer with a clip and start heating until the temperature of the sand is - 110C. B. Mixing the reagents Using the plastic funnel, introduce 0.60-0.70 g of 4-t-butylcyclohexanol into a large, clean, dry test tube. Then add 10 drops of concentrated phosphoric acid, 3 drops of concentrated sulfuric acid and a pebble to moderate boiling....
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