A synthesis of (+/-)-sparteine.
Buttler, Thomas; Fleming, Ian; Gonsior, Sabine; Kim, Bo-Hye; Sung, A-Young; Woo, Hee-Gweon; Organic & biomolecular chemistry 3 (2005) 1557–1567; doi:10.1039/b502213d

data_7150152
_publ_section_title
;
 A synthesis of (+/-)-sparteine.
;
_journal_issue                   8
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1557
_journal_page_last               1567
_journal_paper_doi               10.1039/b502213d
_journal_volume                  3
_journal_year                    2005
_chemical_formula_moiety         'C17 H24 O4'
_chemical_formula_sum            'C17 H24 O4'
_chemical_formula_weight         292.36
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                78.7280(10)
_cell_angle_beta                 79.0190(10)
_cell_angle_gamma                76.7810(10)
_cell_formula_units_Z            4
_cell_length_a                   9.6393(2)
_cell_length_b                   9.6637(2)
_cell_length_c                   17.7208(4)
_cell_measurement_reflns_used    6981
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      20.39
_cell_measurement_theta_min      1.02
_cell_volume                     1557.50(6)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius B.V. 1998)'
_computing_data_reduction
;
HKL Denzo and Scalepack (Otwinowski & Minor 1997)
;
_computing_publication_material  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_solution    'SIR-92 (Altomare et al. 1994)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'Thin slice \w and \f scans'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0314
_diffrn_reflns_av_sigmaI/netI    0.0340
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            9537
_diffrn_reflns_theta_full        20.39
_diffrn_reflns_theta_max         20.39
_diffrn_reflns_theta_min         3.56
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.981
_exptl_absorpt_correction_T_min  0.902
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements
Sortav (Blessing 1995)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.247
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             632
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.193
_refine_diff_density_min         -0.193
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     383
_refine_ls_number_reflns         3046
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0419
_refine_ls_R_factor_gt           0.0376
_refine_ls_shift/su_max          0.019
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0376P)^2^+0.9436P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0875
_refine_ls_wR_factor_ref         0.0904
_reflns_number_gt                2790
_reflns_number_total             3046
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b502213d.txt
_cod_data_source_block           compound_2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7150152