Reference

Gas chromatographic analysis of isovaleric acid esters

Gas chromatographic analysis of isovaleric acid esters. Gukalova, T. P.; Kozlova, V. S.; Buzina, V. A.; Krasnoshchek, A. P.; Medvedeva, T. P. (USSR). Dostizh. Razvit. Nov. Metodov Khim. Anal., 3-4. O-vo. "Znanie" Ukr. SSR: Kiev, USSR. (Russian) 1974. CODEN: 33PWAZ. 609-12-1 and 28221-20-7 are also in the experiment. DOCUMENT TYPE: Conference CA Section: 64 (Pharmaceutical Analysis) Gas-liq. chromatog. (at 200.degree. and with polyethylene glycol adipate as the immobile phase) was used to sep. .alpha.-bromoisovaleric acid Et ester [609-12-1], validol [28221-20-7], and .alpha.-bromomethylethylacetic acid Et ester [61518-67-0]. The components were identified by mass spectroscopy. .

Preparation of phosphonates as reagents for Horner-Emmons reaction

Preparation of phosphonates as reagents for Horner-Emmons reaction. Takayanagi, Hisao; Morinaka, Yasuhiro; Kitano, Yasunori (Mitsubishi Kasei Corp., Japan). Jpn. 121-45-9 and 609-12-1 are cas registry numbers. These chemicals are also mentioned in this article. Kokai Tokkyo Koho JP 04005295 A2 9 Jan 1992 Heisei, 4 pp. (Japan). CODEN: JKXXAF. CLASS: ICM: C07F009-40. APPLICATION: JP 90-108258 24 Apr 1990. DOCUMENT TYPE: Patent CA Section: 29 (Organometallic and Organometalloidal Compounds) The title compds. (R3O)2POCHR1R2 (R1 = H, linear or cyclic C1-6 alkyl; R2 = cyano, CO2R4; R3, R4 = C1-4 alkyl), useful as reagents for Horner-Emmons reaction (no data), are prepd. by treating R1R2CHX (X = halo) with P(OR3)3 under inert gases. A mixt. of P(OMe)3 and ClCH2CN was treated under N at 140-150° for 18 h to give 75% (MeO)2POCH2CN. .