Proximity effects in the electron impact mass spectra of aurones and related compounds
摘要:
AbstractThe principal ions in the electron impact mass spectra of a series of 6‐methoxyaurones have been shown to be due to four separate reactions associated with proximity effects involving the phenyl group and the coumaran‐one residue. A detailed study with labelled derivatives has been supplemented by a study of the vinylogue 2‐cinnamylidene‐6‐methoxycoumaran‐3‐one and compounds in which the aurone phenyl group has been replaced by α‐naphthyl, β‐naphthyl and 9‐anthryl.
Benzofuranone derivatives and a method for producing them
申请人:Snow Brand Milk Products Co., Ltd.
公开号:US06143779A1
公开(公告)日:2000-11-07
The present invention provides new benzofuranone derivatives and a method for producing the derivatives useful for a therapeutic agent for preventing and/or treating hormone dependent diseases. The present invention is a new benzofuranone derivative represented by a particular general formula (I). ##STR1## In the production, a particular benzofuranone compound and a particular benzaldehyde are reacted.
Proximity effects in the electron impact mass spectra of aurones and related compounds
作者:R. J. Goldsack、J. S. Shannon
DOI:10.1002/oms.1210151102
日期:1980.11
AbstractThe principal ions in the electron impact mass spectra of a series of 6‐methoxyaurones have been shown to be due to four separate reactions associated with proximity effects involving the phenyl group and the coumaran‐one residue. A detailed study with labelled derivatives has been supplemented by a study of the vinylogue 2‐cinnamylidene‐6‐methoxycoumaran‐3‐one and compounds in which the aurone phenyl group has been replaced by α‐naphthyl, β‐naphthyl and 9‐anthryl.