11-Hexadecenal

Chemical degradation of chlorophyll gives a number of substances including phytol The constitution of phytol is given by the name 3 7 11 15 tetramethyl 2 hexadecen 1 ol How many stereoisomers have this constitution" ... 

Shimizu S, S Jareonkitmongol, H Kawashima, K Akimoto, H Yamada (1991) Production of a novel wl-eicosa-pentaenoic acid by Mortierella alpina lS-4 grown on 1-hexadecene. Arch Microbiol 156 163-166. 

Ethylhexanol can be epoxidized with 1-hexadecene epoxide. This additive also helps reduce or prevent foaming. By eliminating the need for traditional oil-based components, the composition is nontoxic to marine life, biodegradable, environmentally acceptable, and capable of being disposed of at the drill site without costly disposal procedures [44]. 

Another recent patent (22) and related patent application (31) cover incorporation and use of many active metals into Si-TUD-1. Some active materials were incorporated simultaneously (e.g., NiW, NiMo, and Ga/Zn/Sn). The various catalysts have been used for many organic reactions [TUD-1 variants are shown in brackets] Alkylation of naphthalene with 1-hexadecene [Al-Si] Friedel-Crafts benzylation of benzene [Fe-Si, Ga-Si, Sn-Si and Ti-Si, see apphcation 2 above] oligomerization of 1-decene [Al-Si] selective oxidation of ethylbenzene to acetophenone [Cr-Si, Mo-Si] and selective oxidation of cyclohexanol to cyclohexanone [Mo-Si], A dehydrogenation process (32) has been described using an immobilized pincer catalyst on a TUD-1 substrate. Previously these catalysts were homogeneous, which often caused problems in separation and recycle. Several other reactions were described, including acylation, hydrogenation, and ammoxidation. 

Another very common phytochemical isolated was phytol (3,7,11, 15-tetramethyl-2-hexadecen-l-ol), the diterpenoid alcohol which forms the "tail" of chlorophyll. This compound is nearly insoluble in water, but when applied as a 0.1 mM (0.003 wt. %) solution in 0.1% DMS0 it increased onion germination while decreasing germination in sorghum, wheat, and carrot. The germination effects are significant at only the 95% level, but pretreatment studies are planned as part of other terpene chemistry studies at SRRC and LSI). 

CTAB = cetyltrimethylammonium bromide DDAB = didodecyldimethylammonium bromide DEG = diethylene glycol DOE = dioctyl ether DPE = diphenyl ether DS = dodecyl sulfate EG — ethylene glycol EtOH = ethanol HAD = hexadecylamine HD = 1-hexadecene OD = 1-octadecene HDD = 1,2-hexadecanediol ... 

A unique enyne pheromone component, Z13-hexadecen-ll-ynyl acetate, found in Thaumetopoea pityocampa was found to be produced by the sequential action of a A13 desaturase and a All acetylenase to form ynell-16 acid [43]. The dienyl intermediate Z13,ynell-16 acid was formed by the action of... 

FIGURE 9.24 Molar radioactivity of the reaction products when co-feeding n-hexa-decene-(l)-(l-14C) together with the synthesis gas to FT synthesis on cobalt. Catalyst 100Co-18Th02-100Kieselguhr (by weight), precipitated, 190°C, 1 bar, H2/CO = 2, Xc0 = 70%, 0.1 vol% of hexadecene-14C in the synthesis gas. 

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