Stereoselective intermolecular nitroaminoxylation of terminal aromatic alkynes: trapping alkenyl radicals by TEMPO.
Yan, Hong; Rong, Guangwei; Liu, Defu; Zheng, Yang; Chen, Jie; Mao, Jincheng; Organic letters 16 (2014) 6306–6309; doi:10.1021/ol5030585

data_1518399
_publ_section_title
;
 Stereoselective intermolecular nitroaminoxylation of terminal aromatic
 alkynes: trapping alkenyl radicals by TEMPO.
;
_journal_issue                   24
_journal_name_full               'Organic letters'
_journal_page_first              6306
_journal_page_last               6309
_journal_paper_doi               10.1021/ol5030585
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C17 H24 N2 O3'
_chemical_formula_sum            'C17 H24 N2 O3'
_chemical_formula_weight         304.38
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 91.00(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.770(2)
_cell_length_b                   14.240(3)
_cell_length_c                   11.190(2)
_cell_measurement_reflns_used    4876
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.3491
_cell_measurement_theta_min      3.3897
_cell_volume                     1715.9(6)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalStructure
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.950
_diffrn_measured_fraction_theta_max 0.950
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       \w
_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  0.0354
_diffrn_reflns_av_sigmaI/netI    0.0708
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8201
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.39
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.972
_exptl_absorpt_correction_T_min  0.962
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.178
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.166
_refine_diff_density_min         -0.190
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1.5(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     397
_refine_ls_number_reflns         4917
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0982
_refine_ls_R_factor_gt           0.0610
_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^)+(0.0584P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1260
_refine_ls_wR_factor_ref         0.1440
_reflns_number_gt                3345
_reflns_number_total             4917
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5030585_si_001.cif
_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/COD-crude-data--automatic-downloads/rss-feeds/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 2935 2014-11-11 08:27:57Z andrius 

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 3008 2015-01-20 13:52:24Z robertas 

 Adding full bibliography for 1518399.cif.
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               1518399