hexadecanoic acid

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:

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:

Conditions: temp:100.02; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 1.500 Grams of ethyl stearate, 6.25 mg of PGE 2 and 62.5 mg of oleic acid were placed in a Pyrex test tube and heated to about 100° F. on a hot plate with periodic agitation. The mixture rapidly melted to afford a clear solution. A standard laboratory micropipette (Justor 1100BG manufactured by Nichiryo and available from Sigma, St. Louis, Mo. USA with volume dispensed adjustable from 10.0 to 100.0 microliters; and Sigma pipette tips—catalog #B-6429) was repeatedly dipped into this solution and aspirated with the volume set at 37 microliters. The solution rapidly solidified at ambient room temperature (71° F.) and the resultant suppository was removed by pressing a paper clip into the tip of the pipette. Approximately 100 suppositories were made in a two hour period using this method. Subsequent weighing showed that 96% of the suppositories weighed 31±0.5 mgs. Similar results were obtained when palmitic acid was substituted for oleic acid. to afford a clear solution rapidly solidified at ambient room temperature (71° F.) the resultant suppository was removed Similar results

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

Procedure: Palmitic acid (2.5 g, 9.6 mmol), dimethylaminopyridine (130 mg, 0.9 mmol) and dicyclohexylcarbodiimide (9.6 mmol) are dissolved in 100 ml of chloroform. The solution is stirred for half an hour and N-palmitoylcysteine tert.-butyl ester (2 g, 4.8 mmol), which has previously been dissolved in 50 ml of chloroform, is added dropwise to the other solution. After 11/2 h, the solvent is removed in a rotary evaporator, and the residue is taken up in 100 ml of chloroform/methanol 1:5. The product forms a voluminous precipitate at -20 degrees C. It is filtered off with suction and dried under high vacuum. is added dropwise to the other solution After 11/2 h, the solvent is removed in a rotary evaporator at -20 degrees C It is filtered off with suction dried under high vacuum