TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The oxidation reaction is a 2,2,6,6-tetramethyl-piperidin-1-yl-oxy (TEMPO) oxidation or a chromium-mediated oxidation. The O-alkylation reaction is an O-alkyl-C-alkoxy addition reaction. The reduction reaction and the hydrolysis reaction are an alkyne reduction and an acetal hydrolysis, respectively. The reduction reaction is a borane reduction reaction. The method further comprises producing (V) by reacting (IV) with a compound of formula (R3-R5-R10-M1) (VI), where the reacting of (IV) with (VI) comprises a nucleophilic addition reaction. The method further comprising producing (VI) by reacting a compound of formula (R9-R6-R9) (VII) using a triple bond migration rearrangement reaction, which is an isomerization reaction. The method further comprises: producing a compound of formula (R2-R1-(W1)2) (VIII) in an alkylation reaction on (IV); and producing (V) by reacting (VIII) with a compound of formula (R3-R5-X1) (IX), where the alkylation reaction is an alkynyl-de-halogenation reaction. The reacting of (VIII) with (IX) comprises a cycle of oxidative additions and reductive eliminations. The method further comprises producing (IX) by reacting a compound of formula R3-R4 (X) using a substitution reaction, where the substitution reaction is a halogenation. Preferred Components: Preferred Components: (III) is a halo substituted alkyl alcohol, preferably 10-chlorodecan-1-ol. (II) is a halo substituted alkanal, preferably 10-chlorodecanal. (IV) is a halo substituted dialkoxy substituted alkyl, preferably 10-chloro-1,1-diethoxydecane. (V) is a dialkoxy substituted diynyl, preferably 16,16-diethoxyhexadeca-3,5-diyne. (VI) is a terminal alkyne, preferably 1,3-hexadiyne. (VII) is an internal alkyne, preferably 2,4-hexadiyne.R5 = (-CC)p, or alkynyl;R9 = -CH3 or alkyl; eitherR10 = C(-), carbon anion, or de-protonated carbon; andM1 = metal, sodium, lithium, potassium or magnesium; orM1R10 = form a salt; andp = 1 or 2. SPECIFIC COMPOUNDS - The preparation of (11Z,13Z)-11,13-hexadecadien-1-al of formula (Ia) is specifically claimed as (I).    EXAMPLE - To a solution of potassium hydroxide (88 g) in water (400 ml) was charged bromine (17.5 ml) at ambient temperature. Through this potassium bromide/bromate solution in Dreschel bottle (washing bottle) with fritted tube for gas dispersal was bubbled 1-butyne (5.4 g) at ambient temperature until the light yellow color of this aqueous solution turned colorless. The resultant aqueous solution was extracted with methyl-tert-butyl ether (MTBE). After the separation of aqueous and organic layer, the organic solvents (175 ml) were removed by normal distillation to give a light yellow solution of 1-bromobutyne. To a suspension of hydroxylamine hydrochloride (7.6 g) and copper(I) chloride (0.39 g) in methanol (80 ml) at 0?C under a blanket of nitrogen, was charged n-propylamine (20 ml). After 15 minutes of stirring, a solution of 12,12-diethoxydodec-1-yne (10 g) in methanol (10 ml) was charged and the addition funnel was rinsed with methanol (5 ml). After 15 minutes stirring, the resulting clear solution was cooled down to -20 degrees C. A solution of 1-bromobutyne in MTBE (10.7 ml) was added drop-wise within 3 hours while maintaining temperature below -20 degrees C. The reaction was monitored for the consumption of 12,12-diethoxydodec-1-yne. After 2 hours, the resulting reaction mixture was directly extracted with heptane (3x 200 ml). The extracted heptane-layer was passed through a pad of silica gel (10 g), and the solvent was removed under reduced pressure to give 16,16-diethoxyhexadeca-3,5-diyne (10.5 g). To a solution of cyclohexene (10.6 ml) in tetrahydrofuran (THF) was added borane-N,N-diethylaniline complex (9.1 ml) at -5 degrees C under a blanket of nitrogen. After stirring for 2 hours, 16,16-diethoxyhexadeca-3,5-diyne (6.3 g) was charged while maintaining temperature at 5 degrees C. Solution was monitored for 2.5 hours at 5 degrees C until clear. The solution was stirred for 4 hours at ambient temperature. Then glacial acetic acid (15 ml) was charged. The solution was monitored after 4 hour stirring at ambient temperature until colorless. Aqueous sulfuric acid (100 ml) was charged, and the resulting solution was stirred at 60 degrees C for 2 hours. After cooling to ambient temperature, the solution was extracted with heptane (2x 100 ml). The combined organic layers were washed with water (100 ml) and saturated aqueous sodium bicarbonate (100 ml), respectively. Then the solvent was removed to obtain a crude product, which was then re-dissolved in heptane (100 ml) and stirred with water (100 ml). After stirring for 4 hours and phase separation, the organic layer was filtered through a pad of silica gel (6.3 g) and concentrated to give (Z,Z)-hexadeca-11,13-dienal (5.4 g, 83% yield).