[(7Z,11Z)-hexadeca-7,11-dienyl] acetate

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: In particular, 7,11-hexadecadienyl acetate expressed by the formula CH3 (CH2)3CH=CH(CH2)2CH=CH(CH2)6OCOCH3 is prepared by first reacting a Grignard reagent of 1-halo-3-octene and 1,8-dibromo-1-octyne to form 1-bromohexadeca-11-en-7-yne which is then acetylated and partially hydrogenated in the presence of a Lindlar catalyst. is prepared

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

Procedure: In particular, 7,11-hexadecadienyl acetate expressed by the formula CH3 (CH2)3CH=CH(CH2)2CH=CH(CH2)6OCOCH3 is prepared by first reacting a Grignard reagent of 1-halo-3-octene and 1,8-dibromo-1-octyne to form 1-bromohexadeca-11-en-7-yne which is then acetylated and partially hydrogenated in the presence of a Lindlar catalyst. is prepared

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

Procedure: The THP derivative of hexamethylene bromohydrin in THF is added and the reaction mixture is worked up as described for 7,11-hexadecadienyl acetate. Vacuum distillation of the residue affords (E)-11-hexadecen-7-ynyl acetate, bp 134°-136°/1 mm, nD21 1.4655, in about 55-60% yield, contaminated with 0-5% of 7,11-hexadecadiynyl acetate. Vacuum distillation of the residue

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

Procedure: In particular, 7,11-hexadecadienyl acetate expressed by the formula CH3 (CH2)3CH=CH(CH2)2CH=CH(CH2)6OCOCH3 is prepared by first reacting a Grignard reagent of 1-halo-3-octene and 1,8-dibromo-1-octyne to form 1-bromohexadeca-11-en-7-yne which is then acetylated and partially hydrogenated in the presence of a Lindlar catalyst. is prepared