Gold-catalyzed (4 + 2)-annulations between α-alkyl alkenylgold carbenes and benzisoxazoles with reactive alkyl groups.
Mokar, Bhanudas Dattatray; Jadhav, Prakash D.; Pandit, Y. B.; Liu, Rai-Shung; Chemical science 9 (2018) 4488–4492; doi:10.1039/c8sc00986d

data_1549278
_publ_section_title
;
 Gold-catalyzed (4 + 2)-annulations between \a-alkyl alkenylgold carbenes
 and benzisoxazoles with reactive alkyl groups.
;
_journal_issue                   19
_journal_name_full               'Chemical science'
_journal_page_first              4488
_journal_page_last               4492
_journal_paper_doi               10.1039/c8sc00986d
_journal_volume                  9
_journal_year                    2018
_chemical_formula_moiety         'C20 H19 N O'
_chemical_formula_sum            'C20 H19 N O'
_chemical_formula_weight         289.36
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_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
_audit_update_record
;
2018-01-24 deposited with the CCDC.
2018-04-23 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 108.514(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.5578(12)
_cell_length_b                   20.653(2)
_cell_length_c                   8.4644(10)
_cell_measurement_reflns_used    8229
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      24.853
_cell_measurement_theta_min      2.451
_cell_volume                     1584.4(3)
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'D8 Venture'
_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  0.0500
_diffrn_reflns_av_sigmaI/netI    0.0319
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            21837
_diffrn_reflns_theta_full        25.04
_diffrn_reflns_theta_max         25.04
_diffrn_reflns_theta_min         2.25
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  0.9941
_exptl_absorpt_correction_T_min  0.9839
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.213
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.525
_refine_diff_density_min         -0.196
_refine_diff_density_rms         0.049
_refine_ls_extinction_coef       0.016(5)
_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   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     202
_refine_ls_number_reflns         2789
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0953
_refine_ls_R_factor_gt           0.0687
_refine_ls_shift/su_max          0.014
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0742P)^2^+1.9465P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1679
_refine_ls_wR_factor_ref         0.1948
_reflns_number_gt                2099
_reflns_number_total             2789
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8sc00986d2.cif
_cod_data_source_block           d19364
_cod_depositor_comments
'Adding full bibliography for 1549278--1549281.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1549278