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_4025902
_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         'C20 H21 N O3 S'
_chemical_formula_sum            'C20 H21 N O3 S'
_chemical_formula_weight         355.44
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 98.018(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   18.1117(13)
_cell_length_b                   8.9175(6)
_cell_length_c                   21.5176(16)
_cell_measurement_reflns_used    17077
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.00
_cell_measurement_theta_min      1.91
_cell_volume                     3441.4(4)
_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 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0357
_diffrn_reflns_av_sigmaI/netI    0.0265
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            17077
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    0.207
_exptl_absorpt_correction_T_max  0.9735
_exptl_absorpt_correction_T_min  0.9696
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            White
_exptl_crystal_density_diffrn    1.372
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1504
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.13
_refine_diff_density_max         1.317
_refine_diff_density_min         -0.436
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.321
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     227
_refine_ls_number_reflns         3380
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.321
_refine_ls_R_factor_all          0.0632
_refine_ls_R_factor_gt           0.0517
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.1144P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1715
_refine_ls_wR_factor_ref         0.1800
_reflns_number_gt                2747
_reflns_number_total             3380
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo101916e_si_002_3.cif
_cod_data_source_block           2o
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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               4025902