Synthesis of α-iodoketals from methyl ketones via sustainable and orthogonal tandem catalysis.
Yang, Yan; Gao, Meng; Shu, Wen-Ming; Wu, Liu-Ming; Zhang, Dong-Xue; Wu, An-Xin; Organic & biomolecular chemistry 11 (2013) 1226–1233; doi:10.1039/c2ob27028e

data_7152794
_publ_section_title
;
 Synthesis of \a-iodoketals from methyl ketones via sustainable and
 orthogonal tandem catalysis.
;
_journal_issue                   7
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1226
_journal_page_last               1233
_journal_paper_doi               10.1039/c2ob27028e
_journal_volume                  11
_journal_year                    2013
_chemical_formula_sum            'C18 H16 O2'
_chemical_formula_weight         264.31
_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                 100.061(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   30.156(7)
_cell_length_b                   8.795(2)
_cell_length_c                   11.162(3)
_cell_measurement_reflns_used    6836
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.53
_cell_measurement_theta_min      2.69
_cell_volume                     2914.9(12)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.0268
_diffrn_reflns_av_sigmaI/netI    0.0292
_diffrn_reflns_limit_h_max       37
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            20152
_diffrn_reflns_theta_full        26.59
_diffrn_reflns_theta_max         26.59
_diffrn_reflns_theta_min         0.69
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9923
_exptl_absorpt_correction_T_min  0.9908
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.185
_refine_diff_density_min         -0.153
_refine_diff_density_rms         0.036
_refine_ls_extinction_coef       0.0040(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     366
_refine_ls_number_reflns         6043
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0658
_refine_ls_R_factor_gt           0.0492
_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^)+(0.0714P)^2^+0.9677P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1479
_refine_ls_wR_factor_ref         0.1572
_reflns_number_gt                4616
_reflns_number_total             6043
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ob27028e.txt
_cod_data_source_block           t
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        2915.0(11)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7152794