TMSOTf Mediated ‘5/6-endo-dig’ Reductive Hydroamination for the Stereoselective Synthesis of Pyrrolidine and Piperidine derivatives
Gharpure, Santosh J.; Vishwakarma, Dharmendra S.; Patel, Raj Kumar; Chemical Communications  (2019) –; doi:10.1039/C9CC03127H

data_7123492
_publ_section_title
;
 TMSOTf Mediated &#x2018;5/6-endo-dig&#x2019; Reductive Hydroamination for
 the Stereoselective Synthesis of Pyrrolidine and Piperidine derivatives
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC03127H
_journal_year                    2019
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C20 H25 N O4 S'
_chemical_formula_sum            'C20 H25 N O4 S'
_chemical_formula_weight         375.47
_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   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2019-04-05
_audit_creation_method
;
Olex2 1.2-ac3
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2019-04-05 deposited with the CCDC.    2019-05-17 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.7140(5)
_cell_length_b                   11.6951(5)
_cell_length_c                   16.9879(8)
_cell_measurement_reflns_used    4941
_cell_measurement_temperature    150
_cell_measurement_theta_max      30.4490
_cell_measurement_theta_min      2.0960
_cell_volume                     1929.93(16)
_computing_cell_refinement
;
CrystalClear-SM Expert 2.0 r7 (Rigaku, 2011)
;
_computing_data_collection
;
CrystalClear-SM Expert 2.0 r7 (Rigaku, 2011)
;
_computing_data_reduction
;
CrystalClear-SM Expert 2.0 r7 (Rigaku, 2011)
;
_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    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      150
_diffrn_detector                 CCD
_diffrn_detector_area_resol_mean 28.5714
_diffrn_detector_type            'Rigaku Saturn724+'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w   -109.00  22.00   0.50    8.00    --  -20.00   0.00-180.00  262
  2  \w    -14.50  17.00   0.50    8.00    --  -20.00 -72.00 -36.00   63
  3  \w   -110.00 -73.00   0.50    8.00    --  -20.00   0.00 108.00   74
;
_diffrn_measurement_device       'AFC12 (Right): Kappa 3 circle'
_diffrn_measurement_device_type  'Rigaku Saturn724+ (2x2 bin mode)'
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_measurement_specimen_support 'Mitegen 50um'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0636512000
_diffrn_orient_matrix_UB_12      -0.0185500000
_diffrn_orient_matrix_UB_13      0.0159396000
_diffrn_orient_matrix_UB_21      -0.0159060000
_diffrn_orient_matrix_UB_22      -0.0276203000
_diffrn_orient_matrix_UB_23      -0.0360341000
_diffrn_orient_matrix_UB_31      0.0320656000
_diffrn_orient_matrix_UB_32      -0.0506892000
_diffrn_orient_matrix_UB_33      0.0138348000
_diffrn_radiation_collimation    0.3
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0505
_diffrn_reflns_av_unetI/netI     0.0712
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            7339
_diffrn_reflns_point_group_measured_fraction_full 0.986
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        24.999
_diffrn_reflns_theta_max         24.999
_diffrn_reflns_theta_min         2.114
_diffrn_source                   'Rotating Anode'
_diffrn_source_current           24.0
_diffrn_source_power             1.2
_diffrn_source_target            Mo
_diffrn_source_type              'Rotating Anode'
_diffrn_source_voltage           50.0
_exptl_absorpt_coefficient_mu    0.192
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.78443
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.46 (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.292
_exptl_crystal_description       block
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.183
_exptl_crystal_size_mid          0.103
_exptl_crystal_size_min          0.059
_refine_diff_density_max         0.478
_refine_diff_density_min         -0.642
_refine_diff_density_rms         0.219
_refine_ls_abs_structure_details
;
 Flack x determined using 1035 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.02(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     239
_refine_ls_number_reflns         3354
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0581
_refine_ls_R_factor_gt           0.0438
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0381P)^2^+0.2541P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0907
_refine_ls_wR_factor_ref         0.1013
_reflns_Friedel_coverage         0.718
_reflns_Friedel_fraction_full    0.969
_reflns_Friedel_fraction_max     0.969
_reflns_number_gt                2959
_reflns_number_total             3354
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc03127h2.cif
_cod_data_source_block           sjg-dsv-8-125_mo
_cod_original_cell_volume        1929.94(16)
_cod_database_code               7123492
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.989
_shelx_estimated_absorpt_t_min   0.966
_reflns_odcompleteness_completeness 91.13
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     31.13
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H) groups
2.a Ternary CH refined with riding coordinates:
 C12(H12), C11(H11), C8(H8)
2.b Secondary CH2 refined with riding coordinates:
 C10(H10A,H10B), C9(H9A,H9B)
2.c Aromatic/amide H refined with riding coordinates:
 C19(H19), C15(H15), C4(H4), C6(H6), C16(H16), C7(H7), C3(H3), C18(H18)
2.d Idealised Me refined as rotating group:
 C20(H20A,H20B,H20C), C1(H1A,H1B,H1C), C13(H13A,H13B,H13C)
2.e Idealised tetrahedral OH refined as rotating group:
 O1(H1)
;
_shelx_res_checksum              76769
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
- Detector area scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.406
_oxdiff_exptl_absorpt_empirical_full_min 0.777