(4-chlorophenyl)methylhydrazine

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

Procedure: The same compound is synthesized by the reaction of equimolar quantities of p-chlorobenzylhydrazine and methyl-3-(4-chlorobenzylidene)thiocarbazimidate hydrochloride (see Example 10) in hot ethanol. It is also prepared by the reaction of equimolar amounts of 1-(p-chlorobenzyl)-S-methylisothiosemicarbazide and hydrazine in warm ethanol, which affords 1-amino-3-(p-chlorobenzylamino)guanidine, followed by treatment of the latter with an equimolar quantity of p-chlorobenzaldehyde in hot isopropanol.

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

Procedure: The same compound is synthesized by the reaction of equimolar quantities of p-chlorobenzylhydrazine and methyl-3-(4-chlorobenzylidene)thiocarbazimidate hydrochloride (see Example 10) in hot ethanol. It is also prepared by the reaction of equimolar amounts of 1-(p-chlorobenzyl)-S-methylisothiosemicarbazide and hydrazine in warm ethanol, which affords 1-amino-3-(p-chlorobenzylamino)guanidine, followed by treatment of the latter with an equimolar quantity of p-chlorobenzaldehyde in hot isopropanol.

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

Procedure: 9.8 g (0.1 mol) of propiolic acid ethyl ester and 15.6 g (0.1 mol) of p-chlorobenzylhydrazine in 100 ml of n-butanol were heated for 8 hours under reflux. under reflux

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

Procedure: 9.8 g (0.1 mol) of propiolic acid ethyl ester and 15.6 g (0.1 mol) of p-chlorobenzylhydrazine in 100 ml of n-butanol were heated for 8 hours under reflux. under reflux

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

Procedure: 31.2 g of p-chlorobenzylhydrazine were added dropwise under nitrogen to a solution of 34.6 g of β-amino-β-ethoxymethacrylic acid ethyl ester and a pinch of p-toluenesulphonic acid in 200 ml of ethanol, whereupon the temperature rose from 21° to 31° C. After standing overnight, the product which had precipitated was filtered off and recrystallized from ethanol. rose from 21° to 31° C the product which had precipitated was filtered off recrystallized from ethanol

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

Procedure: The same compound is synthesized by the reaction of equimolar quantities of p-chlorobenzylhydrazine and methyl-3-(4-chlorobenzylidene)thiocarbazimidate hydrochloride (see Example 10) in hot ethanol. It is also prepared by the reaction of equimolar amounts of 1-(p-chlorobenzyl)-S-methylisothiosemicarbazide and hydrazine in warm ethanol, which affords 1-amino-3-(p-chlorobenzylamino)guanidine, followed by treatment of the latter with an equimolar quantity of p-chlorobenzaldehyde in hot isopropanol.

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

Procedure: The same compound is synthesized by the reaction of equimolar quantities of p-chlorobenzylhydrazine and methyl-3-(4-chlorobenzylidene)thiocarbazimidate hydrochloride (see Example 10) in hot ethanol. It is also prepared by the reaction of equimolar amounts of 1-(p-chlorobenzyl)-S-methylisothiosemicarbazide and hydrazine in warm ethanol, which affords 1-amino-3-(p-chlorobenzylamino)guanidine, followed by treatment of the latter with an equimolar quantity of p-chlorobenzaldehyde in hot isopropanol.

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

Procedure: 9.8 g (0.1 mol) of propiolic acid ethyl ester and 15.6 g (0.1 mol) of p-chlorobenzylhydrazine in 100 ml of n-butanol were heated for 8 hours under reflux. under reflux

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

Procedure: 31.2 g of p-chlorobenzylhydrazine were added dropwise under nitrogen to a solution of 34.6 g of β-amino-β-ethoxymethacrylic acid ethyl ester and a pinch of p-toluenesulphonic acid in 200 ml of ethanol, whereupon the temperature rose from 21° to 31° C. After standing overnight, the product which had precipitated was filtered off and recrystallized from ethanol. rose from 21° to 31° C the product which had precipitated was filtered off recrystallized from ethanol

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

Procedure: 9.8 g (0.1 mol) of propiolic acid ethyl ester and 15.6 g (0.1 mol) of p-chlorobenzylhydrazine in 100 ml of n-butanol were heated for 8 hours under reflux. under reflux

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

Procedure: 31.2 g of p-chlorobenzylhydrazine were added dropwise under nitrogen to a solution of 34.6 g of β-amino-β-ethoxymethacrylic acid ethyl ester and a pinch of p-toluenesulphonic acid in 200 ml of ethanol, whereupon the temperature rose from 21° C to 31° C. After standing overnight, the product which had precipitated was filtered off and recrystallized from ethanol. rose from 21° C to 31° C the product which had precipitated was filtered off recrystallized from ethanol

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

Procedure: 9.8 g (0.1 mol) of propiolic acid ethyl ester and 15.6 g (0.1 mol) of p-chlorobenzylhydrazine in 100 ml of n-butanol were heated for 8 hours under reflux. under reflux