Heavier Carbonyl Olefination: The Sila-Wittig Reaction.
Reiter, Dominik; Frisch, Philipp; Szilvási, Tibor; Inoue, Shigeyoshi; Journal of the American Chemical Society 141 (2019) 16991–16996; doi:10.1021/jacs.9b09379

data_4133716
_publ_section_title
;
 Heavier Carbonyl Olefination: The Sila-Wittig Reaction.
;
_journal_issue                   42
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              16991
_journal_page_last               16996
_journal_paper_doi               10.1021/jacs.9b09379
_journal_volume                  141
_journal_year                    2019
_chemical_compound_source        'see text'
_chemical_formula_moiety         'C62 H86 N3 O3 P Si2'
_chemical_formula_sum            'C62 H86 N3 O3 P Si2'
_chemical_formula_weight         1008.49
_space_group_IT_number           148
_space_group_name_Hall           '-R 3'
_space_group_name_H-M_alt        'R -3 :H'
_symmetry_cell_setting           trigonal
_symmetry_Int_Tables_number      148
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   geom
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            18
_cell_length_a                   36.225(5)
_cell_length_b                   36.225(5)
_cell_length_c                   34.334(5)
_cell_measurement_reflns_used    9877
_cell_measurement_temperature    100
_cell_measurement_theta_max      24.9329
_cell_measurement_theta_min      2.2489
_cell_volume                     39019(10)
_computing_cell_refinement       'SAINT (Bruker, 2017)'
_computing_data_collection       'APEX III Control Software (Bruker, 2016)'
_computing_data_reduction        'SAINT (Bruker, 2017)'
_computing_molecular_graphics    'PLATON (Spek, 2011)'
_computing_publication_material  'PLATON (Spek, 2011), enCIFer (Allen, 2014)'
_computing_structure_refinement
'SHELXL2014 (Sheldrick, 2014), SHELXLE (Huebschle, 2011)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100
_diffrn_detector                 ' CCD '
_diffrn_detector_area_resol_mean 16
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       ' \k-geometry diffractometer '
_diffrn_measurement_device_type  ' Apex II CCD '
_diffrn_measurement_method       ' phi- and omega-rotation '
_diffrn_radiation_monochromator  'Triumph monochromator'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1189
_diffrn_reflns_av_unetI/netI     0.0865
_diffrn_reflns_limit_h_max       43
_diffrn_reflns_limit_h_min       -43
_diffrn_reflns_limit_k_max       43
_diffrn_reflns_limit_k_min       -43
_diffrn_reflns_limit_l_max       41
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            133738
_diffrn_reflns_reduction_process
;
;
_diffrn_reflns_theta_full        25.24
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         0.88
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.6604
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2016/2, Bruker, 2016'
_exptl_crystal_colour            'clear colorless'
_exptl_crystal_density_diffrn    0.772
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             9828
_exptl_crystal_size_max          0.228
_exptl_crystal_size_mid          0.204
_exptl_crystal_size_min          0.185
_platon_squeeze_details
;
The crystal contains 8 disordered molecules of THF per main molecule, which were
treated as a diffuse contribution to the overall scattering without specific
atom positions by SQUEEZE/PLATON.
;
_refine_diff_density_max         0.340
_refine_diff_density_min         -0.379
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1024
_refine_ls_number_reflns         15883
_refine_ls_number_restraints     674
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.1350
_refine_ls_R_factor_gt           0.0813
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'W=1/[\S^2^(FO^2^)+(0.1311P)^2^+153.5113P] WHERE P=(FO^2^+2FC^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2419
_refine_ls_wR_factor_ref         0.2755
_reflns_number_gt                9053
_reflns_number_total             15883
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja9b09379_si_002.cif
_cod_data_source_block           compound_6
_cod_original_cell_volume        39019(14)
_cod_original_sg_symbol_H-M      'R -3'
_cod_database_code               4133716
_platon_squeeze_void_probe_radius 1.20
_shelx_res_checksum              56222
_shelx_hkl_checksum              65732
_shelx_fab_checksum              32072