PHOTOCHEMICAL PROPERTIES AND THE STRUCTURE OF 6-METHYL-2,4-DIPHENYL-1-(P-TOLYL)PYRIMIDINIUM PERCHLORATE AND THE PRODUCT OF ITS PHOTOCYCLIZATION

Authors
MAKAROVA NI KNYAZHANSKII MI FILIPENKO OS BULGAREVICH DS KHARLANOV VA BORODAEV SV ALDOSHIN SM
Citation
Ni. Makarova et al., PHOTOCHEMICAL PROPERTIES AND THE STRUCTURE OF 6-METHYL-2,4-DIPHENYL-1-(P-TOLYL)PYRIMIDINIUM PERCHLORATE AND THE PRODUCT OF ITS PHOTOCYCLIZATION, Russian chemical bulletin, 44(9), 1995, pp. 1662-1666
Citations number
7
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
44
Issue
9
Year of publication
1995
Pages
1662 - 1666
Database
ISI
SICI code
1066-5285(1995)44:9<1662:PPATSO>2.0.ZU;2-X
Abstract
The structure and photochemical properties of 6-methyl-2,4-diphenyl-1- (p-tolyl)pyrimidinium perchlorate (1) and 8-dimethyl-2-phenylpyrimido[ 1,2-f]phenanthridinium (2) formed as a result of photocyclization of 1 have been studied. The crystal structure of compound 1 has been studi ed at -140 degrees C and 25 degrees C. In cation 1, the N-tolyl substi tuent and alpha-Ph ring are noncoplanar with the pyrimidinium fragment (the angles are 67.9 degrees and 41.1 degrees, respectively), while t he angle between the gamma-Ph ring and the pyrimidinium moiety is only 7.1 degrees (-140 degrees C). The photocyclization product 2 has a fl attened structure.