Nucleophile-Dependent Regioselective Reaction of (S)-4-Benzyl-2-Fluoroalkyl-1,3-Oxazolines
Haizhen Jiang; Liuming Yan; Minjun Xu; Wenjun Lu; Yeshan Cai; Wen Wan; Jianhua Yao; Shaoxiong Wu; Shizheng Zhu; Jian Hao; Journal of Organic Chemistry 78 (2013) 4261–4269; doi:10.1021/jo400073d

data_4028190
_publ_section_title
;
 Nucleophile-Dependent Regioselective Reaction of
 (S)-4-Benzyl-2-Fluoroalkyl-1,3-Oxazolines
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              4261
_journal_page_last               4269
_journal_paper_doi               10.1021/jo400073d
_journal_volume                  78
_journal_year                    2013
_chemical_formula_sum            'C17 H16 F3 N O2'
_chemical_formula_weight         323.31
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_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     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.162(3)
_cell_length_b                   8.413(5)
_cell_length_c                   37.30(2)
_cell_measurement_reflns_used    1558
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      19.56
_cell_measurement_theta_min      2.48
_cell_volume                     1619.9(16)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0287
_diffrn_reflns_av_sigmaI/netI    0.0316
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       44
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            8389
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         2.18
_exptl_absorpt_coefficient_mu    0.110
_exptl_absorpt_correction_T_max  0.9891
_exptl_absorpt_correction_T_min  0.9784
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_density_diffrn    1.326
_exptl_crystal_F_000             672
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.719
_refine_diff_density_min         -0.426
_refine_diff_density_rms         0.058
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(3)
_refine_ls_extinction_coef       0.010(5)
_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   1.105
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         2851
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.105
_refine_ls_R_factor_all          0.1100
_refine_ls_R_factor_gt           0.0816
_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^)+(0.1493P)^2^+0.7532P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2457
_refine_ls_wR_factor_ref         0.2744
_reflns_number_gt                1928
_reflns_number_total             2851
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo400073d_si_002_2.cif
_cod_data_source_block           3ba
_cod_original_cell_volume        1620.1(15)
_cod_database_code               4028190