Total Synthesis of (-)-Cocaine and (-)-Ferruginine
Guolin Cheng; Xinyan Wang; Rui Zhu; Changwei Shao; Jimin Xu; Yuefei Hu; Journal of Organic Chemistry 76 (2011) 2694–2700; doi:10.1021/jo200069m

data_4026216
_publ_section_title
;
 Total Synthesis of (-)-Cocaine and (-)-Ferruginine
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              2694
_journal_page_last               2700
_journal_paper_doi               10.1021/jo200069m
_journal_volume                  76
_journal_year                    2011
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C13 H19 Br N2 O3'
_chemical_formula_sum            'C13 H19 Br N2 O3'
_chemical_formula_weight         331.21
_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                   6.0781(19)
_cell_length_b                   12.324(4)
_cell_length_c                   19.719(6)
_cell_measurement_reflns_used    4810
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.9
_cell_measurement_theta_min      1.9
_cell_volume                     1477.1(8)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_publication_material  'CrystalStructure 3.7.0'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 14.63
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku Saturn CCD detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0376
_diffrn_reflns_av_sigmaI/netI    0.0569
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            13751
_diffrn_reflns_theta_full        27.89
_diffrn_reflns_theta_max         27.89
_diffrn_reflns_theta_min         1.95
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.789
_exptl_absorpt_correction_T_max  0.6337
_exptl_absorpt_correction_T_min  0.5790
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   CrystalClear
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.489
_exptl_crystal_description       block
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.562
_refine_diff_density_min         -0.395
_refine_diff_density_rms         0.069
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.001(8)
_refine_ls_extinction_coef       0.0241(11)
_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   0.887
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     176
_refine_ls_number_reflns         3505
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.887
_refine_ls_R_factor_all          0.0503
_refine_ls_R_factor_gt           0.0357
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0258P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0580
_refine_ls_wR_factor_ref         0.0627
_reflns_number_gt                2620
_reflns_number_total             3505
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo200069m_si_002.cif
_cod_data_source_block           shelxl
_cod_database_code               4026216