Gold(i)-catalyzed 6-endo-dig azide-yne cyclization: efficient access to 2H-1,3-oxazines.
Lonca, Geoffroy Hervé; Tejo, Ciputra; Chan, Hui Ling; Chiba, Shunsuke; Gagosz, Fabien; Chemical communications (Cambridge, England) 53 (2017) 736–739; doi:10.1039/c6cc08397h

data_7119328
_publ_section_title
;
 Gold(i)-catalyzed 6-endo-dig azide-yne cyclization: efficient access to
 2H-1,3-oxazines.
;
_journal_issue                   4
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              736
_journal_page_last               739
_journal_paper_doi               10.1039/c6cc08397h
_journal_volume                  53
_journal_year                    2017
_chemical_formula_sum            'C17 H13 Br F N O'
_chemical_formula_weight         346.19
_space_group_crystal_system      orthorhombic
_space_group_IT_number           29
_space_group_name_Hall           'P 2c -2ac'
_space_group_name_H-M_alt        'P c a 21'
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_atom_sites_solution_hydrogens   geom
_audit_update_record
;
2016-09-12 deposited with the CCDC.
2016-12-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.5444(5)
_cell_length_b                   10.0871(6)
_cell_length_c                   15.2076(11)
_cell_measurement_reflns_used    3835
_cell_measurement_temperature    296.(2)
_cell_measurement_theta_max      26.9480
_cell_measurement_theta_min      2.6787
_cell_volume                     1464.12(16)
_computing_cell_refinement       'SAINT V8.35A (Bruker AXS Inc., 2015)'
_computing_data_collection       'APEX3 (Bruker AXS Inc., 2015)'
_computing_data_reduction        'SAINT V8.35A (Bruker AXS Inc., 2015)'
_computing_molecular_graphics    'XP (Bruker AXS Inc., 2015)'
_computing_publication_material  'APEX3 (Bruker AXS Inc., 2015)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'XT, VERSION 2014/4'
_diffrn_ambient_temperature      296.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0629
_diffrn_reflns_av_unetI/netI     0.0695
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            13798
_diffrn_reflns_theta_full        27.97
_diffrn_reflns_theta_max         27.97
_diffrn_reflns_theta_min         2.02
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_type              'Bruker KappaCCD'
_exptl_absorpt_coefficient_mu    2.816
_exptl_absorpt_correction_T_max  0.48
_exptl_absorpt_correction_T_min  0.36
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.571
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.420
_exptl_crystal_size_mid          0.320
_exptl_crystal_size_min          0.300
_refine_diff_density_max         0.289
_refine_diff_density_min         -0.539
_refine_ls_abs_structure_details
;

Flack x determined using 970 quotients [(I+)-(I-)]/[(I+)+(I-)]
(Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.002(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         3457
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0636
_refine_ls_R_factor_gt           0.0351
_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^)] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0657
_refine_ls_wR_factor_ref         0.0750
_reflns_number_gt                2551
_reflns_number_total             3457
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6cc08397h2.cif
_cod_data_source_block           chiba398s
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-Scan' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/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 4268 2015-11-12 08:31:59Z antanas 
;
_cod_database_code               7119328
_shelx_res_checksum              72155