Reference

Metathesis of functionalized alkenes by dinitrosylmolybdenum catalyst

Metathesis of functionalized alkenes by dinitrosylmolybdenum catalyst. Keller, A. (Inst. Chem., Univ. Wroclaw, Wroclaw 50-383, Pol.).Several reagents with their cas registry numbers 1617-18-1 and 134343-84-3 are used here. J. Mol. Catal., 70(2), 143-9 (English) 1991. CODEN: JMCADS. ISSN: 0304-5102. DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds) Section cross-reference(s): 22, 67 The dicomponent Mo(NO)2(OR)2-EtAlCl2 and tricomponent Mo(NO)2(OR)2-Et4Sn-AlCl3 catalytic systems as well as ethylidene complexes [(AlCl2)2(m-OR)2Mo(NO)2(CHMe)] (R = Et, CHMe2) show activity for self-metathesis of Et but-3-enoate (I) and very limited activity for cometathesis of I with trans-hex-3-ene. Blocking of the Lewis basic functional groups of I with a Lewis acid (EtAlCl2, AlCl3), however, increased the effectiveness of the catalysts used. Metathesis reactions of Zn(oleate)2 and Al(O-allyl)3 by both catalytic systems, without excess Lewis acid cocatalysts, demonstrate that coordination of the functional groups to the appropriate metal ions completely eliminated the poisoning effect of these groups. .

Packaging films containing fragrance for delivering flavor vapor to food

Packaging films containing fragrance for delivering flavor vapor to food.Some chemicals with cas registry numbers like 1617-18-1 and 144-55-8 are also used. Popplewell, Lewis Michael; Henson, Lulu S. (USA ). U.S. Pat. Appl. Publ. US 2004018293 A1 29 Jan 2004,9 pp. (English). (United States of America). CODEN: USXXCO. CLASS: ICM: A23B004-00. NCL: 426650000. APPLICATION: US 2002-202958 25 Jul 2002. DOCUMENT TYPE: Patent CA Section: 17 (Food and Feed Chemistry) Packaging materials and packages that transfer fragrances to foods and other products via the vapor phase are disclosed. The present invention provides a source of desired fragrance, a suitable environment for vapor transfer, and an appropriate food substrate to which flavor and fragrance is added. Examples of the source of fragrance can be a packaging film contg. fragrance, a sachet of absorbed flavor material, and a flavor diffusing granule or an active system for delivering flavor vapor to the environment. Materials that are preferably treated using the present invention include snacks, confections, baked goods, fresh plant materials, cereals and beverages, as well as non-food products. The time required for flavor transfer is dependent primarily on the volatility and concn. of the fragrances, absorptive capacity of the food, and the intensity of the flavor desired. Thus, packaging film layers for flavoring tortilla chips comprise sheets of POLYIFF film with either roast beef flavor or butter flavor to line the inner compartment of a foil pouch. Unflavored tortilla chips are placed between the sheets of film and the pouch is heat-sealed. .