2-benzylideneoctanal

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

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

Procedure: In a fashion similar to that described in Example 1, α-hexyl-cinnamaidehyde was treated with zinc and acetic acid to provide 2,5-dihexyl-1,6-diphenyl-1,5-hexadiene-3,4-diol.

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

Procedure: In a fashion similar to that described in Example 1, α-hexyl-cinnamaldehyde was treated with zinc and acetic acid to provide 2,5-dihexyl-1,6-diphenyl-1,5-hexadiene-3,4-diol.

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

Procedure: In a fashion similar to that described in Example 1, α-hexyl-cinnamaldehyde was treated with zinc and acetic acid to provide 2,5-dihexyl-1,6-diphenyl-1,5-hexadiene-3,4-diol.

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

Procedure: In a fashion similar to that described in Example 1, α-hexyl-cinnamaldehyde was treated with zinc and acetic acid to provide 2,5-dihexyl-1,6-diphenyl-1,5-hexadiene-3,4-diol.

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

Procedure: The method of claim 1 or 2, wherein α-hexylcinnamaldehyde is prepared via aldol condensation of benzaldehyde and n-octanal.

Conditions: temp:85.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The reaction was carried out in a 2.5 litre double-walled glass reactor provided with a cooler, turbine stirrer (6 blades), thermocouple and a submerged metering tube. A mixture of 1065 grams of benzaldehyde (10.0 mol), 48.8 grams of pyrrolidine (0.679 mol) and 1.8 grams of diphenylamine was heated to 85° C. Over a period of 180 minutes, 878 grams of acidified (0.34 meq/gram) octanal (6.648 mol) were metered in at 85° C. Acidification of the octanal was effected with 16.9 grams of acetic acid (0.281 mol). The reaction was allowed to continue at 85° C. for a further 15 minutes. The reaction mixture was cooled to 65° C. and washed at 50° C., for 15 minutes, with 500.3 grams of 5% strength aqueous NaOH solution (0.625 mol). After neutralization with 78 grams of acetic acid (1.30 mol) for 15 minutes at 50° C., the reaction mixture was separated at 50° C., over a period of 5 to 6 minutes. The organic layer (1869.8 grams) contained 25.5% of benzaldehyde, 2.1% of octanal, 59.8% of α-hexylcinnamaldehyde and 4.6% of α-hexyldecenal. The degrees of conversion of benzaldehyde and octanal were 55.2% and 95.5%, respectively. The selectivity in producing α-hexylcinnamaldehyde was 93.5% with respect to benzaldehyde and 81.4% with respect to octanal. The reaction was carried out in a 2.5 litre double-walled glass reactor provided with a cooler, turbine stirrer (6 blades) were metered in at 85° C to continue at 85° C. for a further 15 minutes The reaction mixture was cooled to 65° C. the reaction mixture was separated at 50° C., over a period of 5 to 6 minutes

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

Procedure: The conversion of the benzaldehyde (bald) amounted to 65.6% and the degree of conversion of octanal to 100%. The selectivities of benzaldehyde and octanal to give α-hexylcinnamaldehyde (α-hex) were 94.9% and 96.2%, respectively, while the selectivity of octanal to give α-hexyldecenal (α-HD) was 1.0%.

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

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

Procedure: The method of claim 1 or 2, wherein α-hexylcinnamaldehyde is prepared via aldol condensation of benzaldehyde and n-octanal.

Conditions: temp:85.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The reaction was carried out in a 2.5 litre double-walled glass reactor provided with a cooler, turbine stirrer (6 blades), thermocouple and a submerged metering tube. A mixture of 1065 grams of benzaldehyde (10.0 mol), 48.8 grams of pyrrolidine (0.679 mol) and 1.8 grams of diphenylamine was heated to 85° C. Over a period of 180 minutes, 878 grams of acidified (0.34 meq/gram) octanal (6.648 mol) were metered in at 85° C. Acidification of the octanal was effected with 16.9 grams of acetic acid (0.281 mol). The reaction was allowed to continue at 85° C. for a further 15 minutes. The reaction mixture was cooled to 65° C. and washed at 50° C., for 15 minutes, with 500.3 grams of 5% strength aqueous NaOH solution (0.625 mol). After neutralization with 78 grams of acetic acid (1.30 mol) for 15 minutes at 50° C., the reaction mixture was separated at 50° C., over a period of 5 to 6 minutes. The organic layer (1869.8 grams) contained 25.5% of benzaldehyde, 2.1% of octanal, 59.8% of α-hexylcinnamaldehyde and 4.6% of α-hexyldecenal. The degrees of conversion of benzaldehyde and octanal were 55.2% and 95.5%, respectively. The selectivity in producing α-hexylcinnamaldehyde was 93.5% with respect to benzaldehyde and 81.4% with respect to octanal. The reaction was carried out in a 2.5 litre double-walled glass reactor provided with a cooler, turbine stirrer (6 blades) were metered in at 85° C to continue at 85° C. for a further 15 minutes The reaction mixture was cooled to 65° C. the reaction mixture was separated at 50° C., over a period of 5 to 6 minutes

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

Procedure: The conversion of the benzaldehyde (bald) amounted to 65.6% and the degree of conversion of octanal to 100%. The selectivities of benzaldehyde and octanal to give α-hexylcinnamaldehyde (α-hex) were 94.9% and 96.2%, respectively, while the selectivity of octanal to give α-hexyldecenal (α-HD) was 1.0%.