Functionalized Heteroarylpyridazines and Pyridazin-3(2H)-one Derivatives via Palladium-Catalyzed Cross-Coupling Methodology
Kate M. Clapham; Andrei S. Batsanov; Ryan D. R. Greenwood; Martin R. Bryce; Amy E. Smith; Brian Tarbit; Journal of Organic Chemistry 73 (2008) 2176–2181; doi:10.1021/jo702420q

data_4023329
_publ_contact_author             'Andrei S.Batsanov'
_publ_contact_author_email       a.s.batsanov@durham.ac.uk
_publ_section_title
;
 Functionalized Heteroarylpyridazines and Pyridazin-3(2H)-one
 Derivatives via Palladium-Catalyzed Cross-Coupling Methodology
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              2176
_journal_page_last               2181
_journal_paper_doi               10.1021/jo702420q
_journal_volume                  73
_journal_year                    2008
_chemical_formula_moiety         'C18 H23 B N2 O4'
_chemical_formula_sum            'C18 H23 B N2 O4'
_chemical_formula_weight         342.19
_chemical_melting_point          450.1(6)
_chemical_name_systematic
; 3-methoxy-6-(4-methoxyphenyl)-4-(4,4,5,5-tetramethyl-1,3,2-
dioxaborolan-2-yl)pyridazine 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.45(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.0700(7)
_cell_length_b                   22.418(2)
_cell_length_c                   11.2301(12)
_cell_measurement_reflns_used    8021
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      29.00
_cell_measurement_theta_min      2.58
_cell_volume                     1760.6(3)
_computing_cell_refinement       'SAINT version 6.45A (Bruker, 2003)'
_computing_data_collection       'SMART version 5.049 (Bruker, 1998)'
_computing_data_reduction        'SAINT version 6.45A (Bruker, 2003)'
_computing_molecular_graphics    'SHELXTL version 6.14 (Bruker, 2003)'
_computing_publication_material  'SHELXTL version 6.14 (Bruker, 2003)'
_computing_structure_refinement  'SHELXTL version 6.14 (Bruker, 2003)'
_computing_structure_solution    'SHELXTL version 6.14 (Bruker, 2003)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Siemens SMART 1K CCD area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0318
_diffrn_reflns_av_sigmaI/netI    0.0300
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            17656
_diffrn_reflns_theta_full        29.01
_diffrn_reflns_theta_max         29.01
_diffrn_reflns_theta_min         1.82
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8520
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS 2.10 (Bruker, 2003), R(int)=0.055 before correction'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.291
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.337
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         4678
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0597
_refine_ls_R_factor_gt           0.0432
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0496P)^2^+0.5772P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1009
_refine_ls_wR_factor_ref         0.1087
_reflns_number_gt                3714
_reflns_number_total             4678
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo702420q-File001_2.cif
_cod_data_source_block           20b
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4023329