Reagent-Controlled Regiodivergent Resolution of Unsymmetrical Oxabicyclic Alkenes Using a Cationic Rhodium Catalyst
Robert Webster; Christian Böing; Mark Lautens; Journal of the American Chemical Society 131 (2009) 444–445; doi:10.1021/ja807942m

data_4103780
_publ_section_title
;
 Reagent-Controlled Regiodivergent Resolution of Unsymmetrical Oxabicyclic
 Alkenes Using a Cationic Rhodium Catalyst
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              444
_journal_page_last               445
_journal_paper_doi               10.1021/ja807942m
_journal_volume                  131
_journal_year                    2009
_chemical_absolute_configuration rmad
_chemical_compound_source        'Synthesized by the authors. See text'
_chemical_formula_moiety         'C15 H17 F2 N O2'
_chemical_formula_sum            'C15 H17 F2 N O2'
_chemical_formula_weight         281.30
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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
_cell_angle_beta                 91.663(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.5519(6)
_cell_length_b                   7.8449(6)
_cell_length_c                   11.5761(8)
_cell_measurement_reflns_used    8416
_cell_measurement_temperature    200
_cell_measurement_theta_max      72.52
_cell_measurement_theta_min      3.82
_cell_volume                     685.52(9)
_computing_cell_refinement       'SAINT V7.34A (Bruker AXS, 2006b)'
_computing_data_collection       'APEX2 v2.1-0 (Bruker AXS, 2006a)'
_computing_data_reduction        'SAINT V7.34A (Bruker AXS, 2006b)'
_computing_molecular_graphics    'SHELXTL v6.12 (Bruker AXS, 2001)'
_computing_publication_material  'UdMX (Maris, 2004)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200
_diffrn_detector_area_resol_mean 5.5
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker Smart 6000'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  'Montel 200 optics'
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.044
_diffrn_reflns_av_sigmaI/netI    0.0361
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            8908
_diffrn_reflns_theta_full        72.73
_diffrn_reflns_theta_max         72.73
_diffrn_reflns_theta_min         3.82
_exptl_absorpt_coefficient_mu    0.915
_exptl_absorpt_correction_T_max  0.8328
_exptl_absorpt_correction_T_min  0.6579
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 2004)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.363
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             296
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.248
_refine_diff_density_min         -0.395
_refine_diff_density_rms         0.100
_refine_ls_abs_structure_details 'Flack H D (1983), 978 Friedel Pairs'
_refine_ls_abs_structure_Flack   0.01(12)
_refine_ls_extinction_coef       0.425(15)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.160
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     185
_refine_ls_number_reflns         2455
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.159
_refine_ls_R_factor_all          0.0521
_refine_ls_R_factor_gt           0.0520
_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^)+(0.0804P)^2^+0.0160P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1096
_refine_ls_wR_factor_ref         0.1098
_reflns_number_gt                2441
_reflns_number_total             2455
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja807942m_si_002.cif
_cod_data_source_block           lough9
_cod_depositor_comments
;
The following automatic conversions were performed:

'_geom_bond_publ_flag' value 'Y' changed to 'y' according to the
built-in table from CIF Core dictionary named 'cif_core.dic' version
2.4.1 from 2010-06-29 (22 times).

'_geom_angle_publ_flag' value 'Y'
changed to 'y' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (33
times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               4103780