Palladium-catalysed cyclisation of ynamides and propargyl tethered iodosulfonamides with boronic acids leading to benzosultams.
Sandeep, K.; Siva Reddy, Alla; Kumara Swamy, K. C.; Organic & biomolecular chemistry 19 (2021) 6871–6882; doi:10.1039/d1ob00925g

data_7158202
_publ_section_title
;
 Palladium-catalysed cyclisation of ynamides and propargyl tethered
 iodosulfonamides with boronic acids leading to benzosultams.
;
_journal_issue                   31
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              6871
_journal_page_last               6882
_journal_paper_doi               10.1039/d1ob00925g
_journal_volume                  19
_journal_year                    2021
_chemical_formula_sum            'C21 H19 N O2 S2'
_chemical_formula_weight         381.49
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2021-05-08 deposited with the CCDC.	2021-07-19 downloaded from the CCDC.
;
_cell_angle_alpha                90.477(2)
_cell_angle_beta                 106.658(2)
_cell_angle_gamma                116.051(2)
_cell_formula_units_Z            2
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_cell_length_b                   9.9589(3)
_cell_length_c                   11.7524(3)
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_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.6920
_cell_measurement_theta_min      2.2890
_cell_volume                     984.84(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type
'XtaLAB Synergy, Single source at offset/far, HyPix3000'
_diffrn_measurement_method       '\w 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    0.0286
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            13154
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    0.285
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.286
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             400
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent'
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.278
_refine_diff_density_min         -0.442
_refine_diff_density_rms         0.044
_refine_ls_extinction_coef       0.017(3)
_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   1.080
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     239
_refine_ls_number_reflns         3470
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.080
_refine_ls_R_factor_all          0.0557
_refine_ls_R_factor_gt           0.0457
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0632P)^2^+0.3450P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1261
_refine_ls_wR_factor_ref         0.1339
_reflns_number_gt                2779
_reflns_number_total             3470
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            d1ob00925g2.cif
_cod_data_source_block           Compound3jb
_cod_depositor_comments
'Adding full bibliography for 7158201--7158205.cif.'
_cod_original_cell_volume        984.84(4)
_cod_database_code               7158202