Rhodium-Catalyzed/Copper-Mediated Tandem C(sp(2))-H Alkynylation and Annulation: Synthesis of 11-Acylated Imidazo[1,2-a:3,4-a']dipyridin-5-ium-4-olates from 2H-[1,2'-Bipyridin]-2-ones and Propargyl Alcohols.
Li, Ting; Wang, Zhiqiang; Xu, Kun; Liu, Wenmin; Zhang, Xu; Mao, Wutao; Guo, Yongming; Ge, Xiaolin; Pan, Fei; Organic letters 18 (2016) 1064–; doi:10.1021/acs.orglett.6b00177

data_1542444
_publ_section_title
;
 Rhodium-Catalyzed/Copper-Mediated Tandem C(sp(2))-H Alkynylation and
 Annulation: Synthesis of 11-Acylated
 Imidazo[1,2-a:3,4-a']dipyridin-5-ium-4-olates from
 2H-[1,2'-Bipyridin]-2-ones and Propargyl Alcohols.
;
_journal_issue                   5
_journal_name_full               'Organic letters'
_journal_page_first              1064
_journal_paper_doi               10.1021/acs.orglett.6b00177
_journal_volume                  18
_journal_year                    2016
_chemical_formula_moiety         'C18 H12 N2 O2'
_chemical_formula_sum            'C18 H12 N2 O2'
_chemical_formula_weight         288.30
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.336(11)
_cell_length_b                   7.549(5)
_cell_length_c                   21.555(16)
_cell_measurement_reflns_used    509
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      16.88
_cell_measurement_theta_min      3.12
_cell_volume                     2658(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.1266
_diffrn_reflns_av_sigmaI/netI    0.0854
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            13551
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            RED
_exptl_crystal_density_diffrn    1.441
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.184
_refine_diff_density_min         -0.288
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.636
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         2613
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.636
_refine_ls_R_factor_all          0.1454
_refine_ls_R_factor_gt           0.0590
_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^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1623
_refine_ls_wR_factor_ref         0.2243
_reflns_number_gt                1113
_reflns_number_total             2613
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol6b00177_si_002.cif
_cod_data_source_block           p
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 1542443--1542444.cif.
;
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               1542444