Alumina-Supported Cu(II), A Versatile and Recyclable Catalyst for Regioselective Ring Opening of Aziridines and Epoxides and Subsequent Cyclization to Functionalized 1,4-Benzoxazines and 1,4-Benzodioxanes
Sukalyan Bhadra; Laksmikanta Adak; Subhas Samanta; A. K. M. Maidul Islam; Manabendra Mukherjee; Brindaban C. Ranu; Journal of Organic Chemistry 75 (2010) 8533–8541; doi:10.1021/jo101916e

data_4025904
_publ_section_title
;
 Alumina-Supported Cu(II), A Versatile and Recyclable Catalyst for
 Regioselective Ring Opening of Aziridines and Epoxides and Subsequent
 Cyclization to Functionalized 1,4-Benzoxazines and 1,4-Benzodioxanes
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_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              8533
_journal_page_last               8541
_journal_paper_doi               10.1021/jo101916e
_journal_volume                  75
_journal_year                    2010
_chemical_formula_moiety         'C16 H15 Br O4'
_chemical_formula_sum            'C16 H15 Br O4'
_chemical_formula_weight         351.19
_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                   10.9224(6)
_cell_length_b                   7.7301(4)
_cell_length_c                   34.5866(18)
_cell_measurement_reflns_used    23698
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      21.93
_cell_measurement_theta_min      1.18
_cell_volume                     2920.2(3)
_computing_cell_refinement       'BRUKER AXS SMART 3'
_computing_data_collection       'BRUKER AXS SMART 3'
_computing_data_reduction        'BRUKER AXS SAINT'
_computing_molecular_graphics    'BRUKER SHELXLTL'
_computing_publication_material  'MURCURY 1.4'
_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  'CCD Area Detector'
_diffrn_measurement_method       'Phi and Omega Scan'
_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  0.0887
_diffrn_reflns_av_sigmaI/netI    0.0334
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            23698
_diffrn_reflns_theta_full        21.93
_diffrn_reflns_theta_max         21.93
_diffrn_reflns_theta_min         1.18
_exptl_absorpt_coefficient_mu    2.828
_exptl_absorpt_correction_T_max  0.6764
_exptl_absorpt_correction_T_min  0.6604
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            White
_exptl_crystal_density_diffrn    1.598
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1424
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.866
_refine_diff_density_min         -0.499
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.903
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         1766
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.903
_refine_ls_R_factor_all          0.0537
_refine_ls_R_factor_gt           0.0365
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0702P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1071
_refine_ls_wR_factor_ref         0.1216
_reflns_number_gt                1385
_reflns_number_total             1766
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo101916e_si_002_5.cif
_cod_data_source_block           3f
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-Scan'
changed to 'multi-scan' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_database_code               4025904