Detail of "20007-72-1"

Reference

1b-Hydroxy-7a-methyl-5,6,7,7a-tetrahydroindan-5-one or 1b-hydroxy-8a-methyl-1,2,3,4,6,7,8,8a-octahydronaphthalen-6-one monohydrate

1b-Hydroxy-7a-methyl-5,6,7,7a-tetrahydroindan-5-one or 1b-hydroxy-8a-methyl-1,2,3,4,6,7,8,8a-octahydronaphthalen-6-one monohydrate. Anbrokh, R. V.; Kamalov, G. L.; Balykina, E. P.; Petrenko, N. F.; Azizyan, E. M.; Sargsyan, M. S.; Enfiadzhyan, N. O. (Odessa State University; All-Union Scientific-Research Institute of Chemical Reagents and Pure Chemical Substances, USSR). U.S.S.R. SU 1041543 A1 15 Sep 1983 From: Otkrytiya, Izobret., Prom. Obraztsy, Tovarnye Znaki 1983, (34), 90-1. (Russian). (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: IC: C07C049-623. APPLICATION: SU 80-3211675 4 Dec 1980. DOCUMENT TYPE: Patent CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) The title compds. are prepd. by reducing 7a-methyl-5,6,7,7a-tetrahydroindan-1,5-dione or 8a-methyl-1,2,3,4,6,7,8,8a-octahydronaphthalene-1,6-dione with NaBH4.In this experiment, several chemicals are used like 4242-00-6 and 20007-72-1 The procedure is simplified and the yield increased by reducing in an aq. medium at 15-20° with subsequent dissoln. of a vacuum distillate in 20-22 vols. of a 5:2 mixt. of ether-petroleum ether which is kept 2 days at 0-5°. .

Electronic structure of

Electronic structure of .alpha.,.beta.-unsaturated ketones. Jones, Claude R.; Kearns, David R. (Dep. Chem., Univ. California, Riverside, Calif., USA). J. Am. Chem. Soc., 99(2), 344-9 (English) 1977. CODEN: JACSAT. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Section cross-reference(s): 32 The high-resoln. polarized singlet-triplet spectra of I is studied and the polarization properties of various bands are accounted for in terms of Herzberg-Teller coupling of a 3(.pi.,.pi.*) state with the 1(.pi.,.pi.*) state and distortions in certain normal modes. There is little change in the geometry of the mol. upon excitation to its lowest 3(. 2398-99-4 and 20007-72-1 which are cas registry numbers are also used here.pi.,.pi.*) state. There is extensive vibronic interaction between the 3(.pi.,.pi.*) state and upper vibrational levels of the 3(n,.pi.*) state. Conclusions reached in the study of I can be directly applied to other .alpha.,.beta.-unsatd. ketones, e.g., testosterone, testosterone acetate, and androstadienone. However, the phosphorescence spectrum of 5-cholestenone is different from that of I, and the lowest triplet state in this mol. is a 3(n,.pi.*), rather than a 3(.pi.,.pi.*) state. .