Detail of "538-68-1"

Reference

Studies on the constituents of essential oils

Studies on the constituents of essential oils. V. Chemical constituents of the essential oil from the seeds of Apium graveolens L. Fang, Hongju; Yang, Junshan; Hu, Qiu; Chen, Yuwu; Sun, Shouwei (Inst. Mater. Med., Chin. Acad. Med. Sci., Beijing, Peop. Rep. China). Yaowu Fenxi Zazhi, 4(4), 205-8 (Chinese) 1984. CODEN: YFZADL. ISSN: 0254-1793. DOCUMENT TYPE: Journal CA Section: 63 (Pharmaceuticals) Section cross-reference(s): 62 Gas chromatog. on a OV-17 packed column gave >40 peaks from the essential oil of A. graveolens seeds. The main components were b-selinene [17066-67-0] 58, limonene [138-86-3] 19, butyl-4,5-dihydrophthalide [62006-39-7] 6.9, caryophyllene [87-44-5] 3.3, butylphthalide [6066-49-5] 1.7, and 1-phenylpentane [538-68-1] 1.8%. Most of the butyl-4,5-dihydrophthalide was converted to butylphthalide during storage of the oil. The alkylphthalides of A. graveolens consist of only butylphthalide and butyl-4,5-dihydrophtrhalide. Both butylphthalide and butyl-4,5-dihydrophthalide have the same pharmacol. activity.

Enthalpies of mixing in the systems: n-amylbenzene with n-alkylbenzene from benzene to n-butylbenzene, and n-hexylbenzene with n-alkylbenzene from benzene to n-amylbenzene

Enthalpies of mixing in the systems: n-amylbenzene with n-alkylbenzene from benzene to n-butylbenzene, and n-hexylbenzene with n-alkylbenzene from benzene to n-amylbenzene. Woycicki, Wladyslaw (Inst. Phys. Chem., Pol. Acad. Sci., Warsaw, Pol.). Bull. Acad. Pol. Sci., Ser. Sci. Chim., 25(7), 553-60 (English) 1977. CODEN: BAPCAQ. DOCUMENT TYPE: Journal CA Section: 69 (Thermodynamics, Thermochemistry, and Thermal Properties) The heat of mixing, DH, of pentylbenzene (I) [538-68-1] or hexylbenzene (II) [1077-16-3] with lower alkylbenzenes with 1-4 and 1-5 C atoms in the alkyl chain for mixts. with I and II, resp., was detd. at 298.15 K. For systems in which the components differ only by a CH2 group, DH for equimolar mixts. is const. (~6 J mol-1). In such systems, the exothermal portion of DH decreases with increasing length of alkyl chain of both components. Systems contg. benzene represent a sep. group in which DH can be described with an appropriate equation.