Synthesis of 4,5-dichloro-1-(4,5-dichloropyridazin-3-yl)pyridazin-6-one

Journal of Heterocyclic Chemistry

Volumn 36, Issue 5, 1999, Pages 1301-1306

  Kweon, Deok Heon ^a   Kang, Young Jin ^a   Chung, Hyun A ^a   Park, Jung Won ^a   Lee, Woo Song ^a   Yoon, Yong Jin ^a   Kim, Sung Kyu ^b   Shiro, Motoo ^c  

^a Gyeongsang National University   (South Korea)

^b Chinju National University   (South Korea)

^c RIGAKU CORPORATION   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

PYRIDAZINE DERIVATIVE;

ARTICLE; CHEMICAL ANALYSIS; CHEMICAL REACTION; CHEMICAL STRUCTURE; ORGANIC CHEMISTRY; STRUCTURE ANALYSIS; SYNTHESIS;

EID: 0032795842     PISSN: 0022152X     EISSN: None     Source Type: Journal    
DOI: 10.1002/jhet.5570360531     Document Type: Article

References (12)

1. A. R. Katritzky and A. J. Boulton, Advances in Heterocyclic Chemistry, Vol 9, Academic Press, New York, 1968, p 249.
2. P. Coad, R. A. Coad, S. Clough, J. Hyepock, R. Salisbury and C. Wilkins, J. Org. Chem., 28, 218 (1968)
3. D. H. Kweon, Y. J. Kang, H.-A Chung and Y. J. Yoon, J. Heterocyclic Chem., 35, 819 (1998)
4. R. H. Mizzoni, P. E. Spoerri, J. Am. Chem. Soc., 73, 1973 (1951)
5. SIR97: A. Altomare, M. C. Burla, M. Camalli, G. Cascarano, C. Giacovazzo, A. Guagliardi, A. G. G. Moliterni, G. Polidori and R. Spagna, A New Tool for Crystal Structure Determination and Refimement, J. Appl. Cryst., (1998) in press.
6. DIRDIF94: P. T. Beurskens, G. Admiraal, G. Beurskens, W. P. Bosman, R. de Gelder, R. Israel and J. M. M. Smits, (1994), The DIRDIF-94 Program System, Technical Refort of the Crystallography Laboratory, University of Nijmergen, The Netherlands.
7. c(Fo) = e.s.d. based on counting statistics, p = p-factor.
8. 2/(No-Nv), where No = number of observations, Nv = number of variables.
9. D. T. Cromer and J. T. Waber, International Tables for X-ray Crystallography, VoI IV, The Kynoch Press, Birmingham, England, Table 2.2 A (1974).
10. D. C. Creagh and J. H. Hubbell, International Tables for Crystallography, Vol C, A. J. C. Wilson, ed, Kluwer Academic Publishers, Boston, Table 4.2.4.3, 1992 pp 200-206.
11. teXsan: Crystal Structure analysis Package, Molecular Structure Corporation (1985 & 1992).
12. The ADC (atomic designator code) specifies the position of an atom in a crystal. The 5-digit number shown in the table is a composite of three one-digit numbers and one two-digit number: TA (first digit) + TB (second digit) + TC (third digit) + SN (last two digits). TA, TB and TC are the crystal lattice translation digits along cell edges a, b and c. A translation digit of 5 indicates the origin unit cell. If TA = 4, this indicates a translation of one unit cell length along the a-axis in the negative direction. Each translation digit can range in value from 1 to 9 and thus ±4 lattice translations from the origin (TA = 5, TB = 5, TC = 5) can be represented. The SN, or symmetry operator number, refers to the number of the symmetry operator used to generate the coordinates of the target atom. A list of symmetry operators relevant to this structure are given below. For a given intermolecular contact, the first atom (origin atom) is located in the origin unit cell and its position can be generated using the identity operator (SN = 1). Thus, the ADC for an origin atom is always 55501. The position of the second atom (target atom) can be generated using the ADC and the coordinates of the atom in the parameter table. For example, an ADC of 47502 refers to the target atom moved through symmetry operator two, then translated -1 cell translations along the a axis, +2 cell translations along the b axis, and 0 cell translations along the c axis. An ADC of 1 indicates an intermolecular contact between two fragments (eg. cation and anion) that residue in the same asymmetric unit. Symmetry Operators: (1) X, Y, Z; (2) -X, -Y, -Z.