Silver-Mediated Radical C(sp(3))-H Biphosphinylation and Nitration of β-Alkynyl Ketones for Accessing Functional Isochromenes.
Sun, Jun; Qiu, Jiang-Kai; Wu, Ya-Nan; Hao, Wen-Juan; Guo, Cheng; Li, Guigen; Tu, Shu-Jiang; Jiang, Bo; Organic letters 19 (2017) 754–757; doi:10.1021/acs.orglett.6b03546

data_1545458
_publ_section_title
;
 Silver-Mediated Radical C(sp(3))-H Biphosphinylation and Nitration of
 \b-Alkynyl Ketones for Accessing Functional Isochromenes.
;
_journal_issue                   4
_journal_name_full               'Organic letters'
_journal_page_first              754
_journal_page_last               757
_journal_paper_doi               10.1021/acs.orglett.6b03546
_journal_volume                  19
_journal_year                    2017
_chemical_formula_sum            'C43 H36 O4 P2'
_chemical_formula_weight         678.66
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 97.9660(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.1257(3)
_cell_length_b                   11.6800(2)
_cell_length_c                   22.1850(5)
_cell_measurement_reflns_used    9493
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.08
_cell_measurement_theta_min      2.38
_cell_volume                     3624.94(13)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      296(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_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  0.0321
_diffrn_reflns_av_sigmaI/netI    0.0640
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            29395
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         1.97
_exptl_absorpt_coefficient_mu    0.162
_exptl_absorpt_correction_T_max  0.974
_exptl_absorpt_correction_T_min  0.957
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.244
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1424
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.280
_refine_diff_density_min         -0.342
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     444
_refine_ls_number_reflns         8302
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.1168
_refine_ls_R_factor_gt           0.0525
_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^)+(0.0771P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1284
_refine_ls_wR_factor_ref         0.1542
_reflns_number_gt                4538
_reflns_number_total             8302
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol6b03546_si_002.cif
_cod_data_source_block           1234
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1545458