Diastereoselective Synthesis of P-Stereogenic Secondary Phosphine Oxides (SPOs) Bearing a Chiral Substituent by Ring Opening of (+)-Limonene Oxide with Primary Phosphido Nucleophiles.
Zimmerman, Amber; Xu, Rebecca; Reynolds, Samantha C.; Shipp, Chase; Marshall, Derrick; Wang, Ge; Blank, Natalia F.; Gibbons, Sarah; Hughes, Russell P.; Glueck, David S.; Balaich, Gary James; Rheingold, Arnold L.; The Journal of organic chemistry  (2020) –; doi:10.1021/acs.joc.0c00974

data_4038587
_publ_section_title
;
 Diastereoselective Synthesis of P-Stereogenic Secondary Phosphine Oxides
 (SPOs) Bearing a Chiral Substituent by Ring Opening of (+)-Limonene Oxide
 with Primary Phosphido Nucleophiles.
;
_journal_name_full               'The Journal of organic chemistry'
_journal_paper_doi               10.1021/acs.joc.0c00974
_journal_year                    2020
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H29 O2 P'
_chemical_formula_sum            'C16 H29 O2 P'
_chemical_formula_weight         284.36
_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'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_date             2019-10-04
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.9712(9)
_cell_length_b                   12.238(2)
_cell_length_c                   22.345(4)
_cell_measurement_reflns_used    4844
_cell_measurement_temperature    100
_cell_measurement_theta_max      27.307
_cell_measurement_theta_min      3.203
_cell_volume                     1632.9(5)
_computing_cell_refinement       'SAINT v8.38A (Bruker, 2017)'
_computing_data_collection       'APEX3 v2017.3-0 (Bruker, 2017)'
_computing_data_reduction        'SAINT v8.38A (Bruker, 2017)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0
_diffrn_detector_area_resol_mean 8.258
_diffrn_detector_type            'CCD Area Detector'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'Kappa Four-Circle Diffractometer'
_diffrn_measurement_device_type  'Bruker APEX II Ultra'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0473
_diffrn_reflns_av_unetI/netI     0.0486
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            11491
_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         27.506
_diffrn_reflns_theta_min         1.823
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.166
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6766
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0732 before and 0.0613 after correction. The Ratio of minimum to maximum transmission is 0.9075. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.157
_exptl_crystal_description       block
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.309
_refine_diff_density_min         -0.179
_refine_diff_density_rms         0.044
_refine_ls_abs_structure_details
;
 Flack x determined using 1363 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.00(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3741
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0409
_refine_ls_R_factor_gt           0.0365
_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^)+(0.0356P)^2^+0.3996P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0865
_refine_ls_wR_factor_ref         0.0890
_reflns_Friedel_coverage         0.721
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                3482
_reflns_number_total             3741
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo0c00974_si_003.cif
_cod_data_source_block           glu543_0m_a
_cod_database_code               4038587
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.984
_shelx_estimated_absorpt_t_min   0.953
_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
2. Others
 Fixed Sof: C16(0.5) H16A(0.5) H16B(0.5) C15'(0.5) H15A(0.5) H15B(0.5)
 H15C(0.5) C16'(0.5) H16C(0.5) H16D(0.5) C15(0.5) H15D(0.5) H15E(0.5) H15F(0.5)
3.a Ternary CH refined with riding coordinates:
 C7(H7), C6(H6), C12(H12)
3.b Secondary CH2 refined with riding coordinates:
 C13(H13A,H13B), C10(H10A,H10B), C1(H1A,H1B), C5(H5A,H5B), C4(H4A,H4B), C2(H2A,
 H2B), C11(H11A,H11B), C3(H3A,H3B)
3.c X=CH2 refined with riding coordinates:
 C16(H16A,H16B), C16'(H16C,H16D)
3.d Idealised Me refined as rotating group:
 C9(H9A,H9B,H9C), C15'(H15A,H15B,H15C), C15(H15D,H15E,H15F)
;
_shelx_res_checksum              39770
_shelx_hkl_checksum              88983
_olex2_submission_special_instructions 'No special instructions were received'