Bifunctional phosphine-catalyzed domino reaction: highly stereoselective synthesis of cis-2,3-dihydrobenzofurans from salicyl N-thiophosphinyl imines and allenes.
Meng, Xiangtai; Huang, You; Chen, Ruyu; Organic letters 11 (2009) 137–140; doi:10.1021/ol802453c

data_1503732
_publ_section_title
;
 Bifunctional phosphine-catalyzed domino reaction: highly stereoselective
 synthesis of cis-2,3-dihydrobenzofurans from salicyl N-thiophosphinyl
 imines and allenes.
;
_journal_issue                   1
_journal_name_full               'Organic letters'
_journal_page_first              137
_journal_page_last               140
_journal_paper_doi               10.1021/ol802453c
_journal_volume                  11
_journal_year                    2009
_chemical_formula_moiety         'C26 H26 N O3 P S'
_chemical_formula_sum            'C26 H26 N O3 P S'
_chemical_formula_weight         463.51
_space_group_IT_number           14
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 100.869(15)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.176(6)
_cell_length_b                   7.490(3)
_cell_length_c                   21.198(8)
_cell_measurement_reflns_used    5556
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.9
_cell_measurement_theta_min      2.0
_cell_volume                     2366.3(16)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear(Rigaku/MSC Inc., 2005)'
_computing_data_reduction        CrystalClear
_computing_publication_material  'CrystalStructure 3.7.0'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Rigaku Saturn CCD area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0849
_diffrn_reflns_av_sigmaI/netI    0.3652
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            17256
_diffrn_reflns_theta_full        27.89
_diffrn_reflns_theta_max         27.89
_diffrn_reflns_theta_min         1.37
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.232
_exptl_absorpt_correction_T_max  0.9727
_exptl_absorpt_correction_T_min  0.9682
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   CrystalClear
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.301
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             976
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.549
_refine_diff_density_min         -0.459
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_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     295
_refine_ls_number_reflns         5612
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1005
_refine_ls_R_factor_gt           0.0607
_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^)+(0.0672P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1330
_refine_ls_wR_factor_ref         0.1576
_reflns_number_gt                3601
_reflns_number_total             5612
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol802453c_si_006.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1503732