Dual catalysis by Cu(i): facile single step click and intramolecular C-O bond formation leading to triazole tethered dihydrobenzodioxines/benzoxazines/benzoxathiines/benzodioxepines.
Nagarjuna Reddy, M.; Kumara Swamy, K. C.; Organic & biomolecular chemistry 11 (2013) 7350–7360; doi:10.1039/c3ob41332b

data_7153152
_publ_section_title
;
 Dual catalysis by Cu(i): facile single step click and intramolecular C-O
 bond formation leading to triazole tethered
 dihydrobenzodioxines/benzoxazines/benzoxathiines/benzodioxepines.
;
_journal_issue                   42
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              7350
_journal_page_last               7360
_journal_paper_doi               10.1039/c3ob41332b
_journal_volume                  11
_journal_year                    2013
_chemical_formula_sum            'C19 H20 N4 O3 S'
_chemical_formula_weight         384.45
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 94.1160(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.4958(6)
_cell_length_b                   11.6503(8)
_cell_length_c                   18.9628(14)
_cell_measurement_reflns_used    9740
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.02
_cell_measurement_theta_min      2.40
_cell_volume                     1872.1(2)
_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      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0381
_diffrn_reflns_av_sigmaI/netI    0.0261
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            18997
_diffrn_reflns_theta_full        26.03
_diffrn_reflns_theta_max         26.03
_diffrn_reflns_theta_min         2.05
_exptl_absorpt_coefficient_mu    0.201
_exptl_absorpt_correction_T_max  0.984
_exptl_absorpt_correction_T_min  0.964
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS, Sheldrick (1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.364
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.242
_refine_diff_density_min         -0.269
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         3694
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0519
_refine_ls_R_factor_gt           0.0419
_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^)+(0.0805P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1218
_refine_ls_wR_factor_ref         0.1269
_reflns_number_gt                2931
_reflns_number_total             3694
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ob41332b.txt
_cod_data_source_block           compd-32
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7153152