K3PO4-promoted domino reactions: diastereoselective synthesis of trans-2,3-dihydrobenzofurans from salicyl N-tert-butanesulfinyl imines and sulfur ylides
Zhang, Minxuan; Lu, Tianyu; Zhao, Yun; Xie, Guixian; Miao, Zhiwei; RSC Advances 9 (2019) 11978–; doi:10.1039/C9RA00309F

data_7232614
_publ_section_title
;
 K3PO4-promoted domino reactions: diastereoselective synthesis of
 trans-2,3-dihydrobenzofurans from salicyl N-tert-butanesulfinyl imines
 and sulfur ylides
;
_journal_issue                   21
_journal_name_full               'RSC Advances'
_journal_page_first              11978
_journal_paper_doi               10.1039/C9RA00309F
_journal_volume                  9
_journal_year                    2019
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C19 H19 Cl2 N O3 S'
_chemical_formula_sum            'C19 H19 Cl2 N O3 S'
_chemical_formula_weight         412.31
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_block_doi                 10.5517/ccdc.csd.cc1q8jbv
_audit_creation_date             2017-11-15
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2017-11-22 deposited with the CCDC.    2019-04-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.4226(17)
_cell_length_b                   14.002(3)
_cell_length_c                   16.760(3)
_cell_measurement_reflns_used    5783
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.8505
_cell_measurement_theta_min      1.8943
_cell_volume                     1976.6(7)
_computing_cell_refinement       crystalclear
_computing_data_collection       crystalclear
_computing_data_reduction        crystalclear
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      113.15
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Rigaku Saturn 70 CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0510
_diffrn_reflns_av_unetI/netI     0.0460
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            19834
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.844
_diffrn_reflns_theta_min         2.430
_exptl_absorpt_coefficient_mu    0.452
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8035
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   crystalclear
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.386
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             856
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.330
_refine_diff_density_min         -0.232
_refine_diff_density_rms         0.050
_refine_ls_abs_structure_details
;
 Flack x determined using 1341 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.09(3)
_refine_ls_extinction_coef       0.0159(15)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/8 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   0.993
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     243
_refine_ls_number_reflns         4700
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.993
_refine_ls_R_factor_all          0.0451
_refine_ls_R_factor_gt           0.0382
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0441P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0769
_refine_ls_wR_factor_ref         0.0808
_reflns_Friedel_coverage         0.759
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                4042
_reflns_number_total             4700
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ra00309f2.cif
_cod_data_source_block           shelxl
_cod_database_code               7232614
_shelx_shelxl_version_number     2014/8
_shelx_estimated_absorpt_t_max   0.948
_shelx_estimated_absorpt_t_min   0.915
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 N1-H1
 0.9 with sigma of 0.01
3.a Ternary CH refined with riding coordinates:
 C7(H7), C8(H8)
3.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C5(H5), C11(H11), C12(H12), C13(H13), C14(H14), C15(H15)
3.c Idealised Me refined as rotating group:
 C17(H17A,H17B,H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C)
;
_shelx_res_checksum              66830
_olex2_submission_special_instructions 'No special instructions were received'