3-(4-hydroxy-3,5-dimethoxyphenyl)prop-2-enal

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The compound was prepared as described in Example 3 by adding 3,5-dimethoxy-4-hydroxycinnamaldehyde (0.15 g, 0.72 mmol) to cyanoacetic acid (0.061 g, 0.72 mmol). After refluxing for 1 h and recrystallization from ethanol a yellow solid was obtained (0.15 g, 75%). The product gave the following analytical data: The compound was prepared After refluxing for 1 h recrystallization from ethanol a yellow solid was obtained (0.15 g, 75%) The product gave the following analytical data

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The compound was prepared as described in Example 3 by adding 3,5-dimethoxy-4-hydroxycinnamaldehyde (0.1 g, 0.48 mmol) to 2-cyanoacetamide (0.04 g, 0.48 mmol). After refluxing for 3 h and recrystallization from ethanol an orange solid was obtained (0.083 g, 63%). The product gave the following analytical data: The compound was prepared After refluxing for 3 h recrystallization from ethanol an orange solid was obtained (0.083 g, 63%) The product gave the following analytical data

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The compound was prepared as described in Example 3 by adding 3,5-dimethoxy-4-hydroxycinnamaldehyde (0.15 g, 0.72 mmol) to 2-cyanothioacetamide (0.073 g, 0.72 mmol). After refluxing for 1 h the residue was purified on a TLC-plate in hexane-ethyl acetate, 1:1 to give a red solid (0.10 g, 52%). The product gave the following analytical data: The compound was prepared After refluxing for 1 h the residue was purified on a TLC-plate in hexane-ethyl acetate, 1:1

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The compound was prepared as described in Example 3 by adding 3,5-dimethoxy-4 hydroxycinnamaldehyde (0.10 g, 0.48 mmol) to N-(cyanoacetyl)phenylpropylamide (Example 19, 0.097 g, 0.48 mmol). After refluxing for 3 h the residue was purified by silica gel chromatography (CHCl3-hexane, 1:1) to give a brown solid (0.17 g, 90% yield). The product gave the following analytical data: The compound was prepared After refluxing for 3 h the residue was purified by silica gel chromatography (CHCl3-hexane, 1:1)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The compound was prepared as described in Example 3 by adding 3,5-dimethoxy-4-hydroxycinnamaldehyde (0.15 g, 0.72 mmol) to cyanoacetic acid (0.061 g, 0.72 mmol). After refluxing for 1 h and recrystallization from ethanol a yellow solid was obtained (0.15 g, 75%). The product gave the following analytical data: The compound was prepared After refluxing for 1 h recrystallization from ethanol a yellow solid was obtained (0.15 g, 75%) The product gave the following analytical data

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The compound was prepared as described in Example 3 by adding 3,5-dimethoxy-4-hydroxycinnamaldehyde (0.1 g, 0.48 mmol) to 2-cyanoacetamide (0.04 g, 0.48 mmol). After refluxing for 3 h and recrystallization from ethanol an orange solid was obtained (0.083 g, 63%). The product gave the following analytical data: The compound was prepared After refluxing for 3 h recrystallization from ethanol an orange solid was obtained (0.083 g, 63%) The product gave the following analytical data

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The compound was prepared as described in Example 3 by adding 3,5-dimethoxy-4-hydroxycinnamaldehyde (0.15 g, 0.72 mmol) to cyanoacetic acid (0.061 g, 0.72 mmol). After refluxing for 1 h and recrystallization from ethanol a yellow solid was obtained (0.15 g, 75%). The product gave the following analytical data: The compound was prepared After refluxing for 1 h recrystallization from ethanol a yellow solid was obtained (0.15 g, 75%) The product gave the following analytical data

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The compound was prepared as described in Example 3 by adding 3,5-dimethoxy-4-hydroxycinnamaldehyde (0.15 g, 0.72 mmol) to 2-cyanothioacetamide (0.073 g, 0.72 mmol). After refluxing for 1 h the residue was purified on a TLC-plate in hexane-ethyl acetate, 1:1 to give a red solid (0.10 g, 52%). The product gave the following analytical data: The compound was prepared After refluxing for 1 h the residue was purified on a TLC-plate in hexane-ethyl acetate, 1:1