Construction of Nitrated Benzo[3.3.1]bicyclic Acetal/Ketal Core via Nitration of o-Carbonyl Allylbenzenes.
Chan, Chieh-Kai; Tsai, Yu-Lin; Chang, Meng-Yang; Organic letters 19 (2017) 1358–1361; doi:10.1021/acs.orglett.7b00245

data_1545399
_publ_section_title
;
 Construction of Nitrated Benzo[3.3.1]bicyclic Acetal/Ketal Core via
 Nitration of o-Carbonyl Allylbenzenes.
;
_journal_issue                   6
_journal_name_full               'Organic letters'
_journal_page_first              1358
_journal_page_last               1361
_journal_paper_doi               10.1021/acs.orglett.7b00245
_journal_volume                  19
_journal_year                    2017
_chemical_formula_sum            'C12 H15 N O6'
_chemical_formula_weight         269.25
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                90
_cell_angle_beta                 98.406(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.8557(17)
_cell_length_b                   4.7327(5)
_cell_length_c                   19.297(2)
_cell_measurement_reflns_used    2989
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.7168
_cell_measurement_theta_min      2.9723
_cell_volume                     1251.8(2)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0301
_diffrn_reflns_av_unetI/netI     0.0311
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -3
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            9889
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.990
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.847
_diffrn_reflns_theta_min         1.698
_exptl_absorpt_coefficient_mu    0.116
_exptl_absorpt_correction_T_max  0.9485
_exptl_absorpt_correction_T_min  0.8829
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2014/4 (Bruker AXS Inc.)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.429
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lump
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.262
_refine_diff_density_min         -0.204
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     176
_refine_ls_number_reflns         2654
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0486
_refine_ls_R_factor_gt           0.0359
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0463P)^2^+0.2428P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0858
_refine_ls_wR_factor_ref         0.0920
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2093
_reflns_number_total             2654
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ol7b00245_si_006.cif
_cod_data_source_block           160829LT
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 1545398--1545406.cif.
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_cod_database_code               1545399
_shelxl_version_number           2014/6
_shelx_res_checksum              54248
_shelx_hkl_checksum              66784