Cu(I)-Catalyzed Ligand-free Tandem One Pot or Sequential Annulation via Knoevenagel Intermediate: An Entry into Multifunctional Naphthalenes, Phenanthrenes, Quinolines and Benzo[b]carbazoles.
Swamy, K. C. Kumara; Sunke, Rajnikanth; Kalyani, Adula; The Journal of organic chemistry  (2019) –; doi:10.1021/acs.joc.9b02991

data_4037734
_publ_section_title
;
 Cu(I)-Catalyzed Ligand-free Tandem One Pot or Sequential Annulation via
 Knoevenagel Intermediate: An Entry into Multifunctional Naphthalenes,
 Phenanthrenes, Quinolines and Benzo[b]carbazoles.
;
_journal_name_full               'The Journal of organic chemistry'
_journal_paper_doi               10.1021/acs.joc.9b02991
_journal_year                    2019
_chemical_formula_sum            'C22 H18 Br N3 O2'
_chemical_formula_weight         436.30
_space_group_IT_number           60
_space_group_name_Hall           '-P 2n 2ab'
_space_group_name_H-M_alt        'P b c n'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P b c n'
_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                   20.5404(6)
_cell_length_b                   8.9927(3)
_cell_length_c                   20.6948(6)
_cell_measurement_reflns_used    7084
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      23.1750
_cell_measurement_theta_min      1.9800
_cell_volume                     3822.6(2)
_computing_cell_refinement       'CrysAlisPro 1.171.40.35a (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.40.35a (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.40.35a (Rigaku OD, 2018)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type
'XtaLAB Synergy, Single source at offset/far, HyPix3000'
_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  0.0370
_diffrn_reflns_av_sigmaI/netI    0.0382
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            21351
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.97
_exptl_absorpt_coefficient_mu    2.174
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.51513
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.516
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1776
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.427
_refine_diff_density_min         -0.303
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3379
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0905
_refine_ls_R_factor_gt           0.0547
_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^)+(0.0438P)^2^+4.2234P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1078
_refine_ls_wR_factor_ref         0.1190
_reflns_number_gt                2362
_reflns_number_total             3379
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo9b02991_si_001.cif
_cod_data_source_block           Compound3ia
_cod_original_sg_symbol_H-M      'P bc n '
_cod_database_code               4037734