Thermal Elimination of Diethyldithiocarbamates and Application in the Synthesis of (±)-Ferrugine
Shamim Ahmed; Luke A. Baker; Richard S. Grainger; Paolo Innocenti; Camilo E. Quevedo; Journal of Organic Chemistry 73 (2008) 8116–8119; doi:10.1021/jo801652x

data_4023777
_publ_section_title
;
 Thermal Elimination of Diethyldithiocarbamates and Application
 in the Synthesis of (+-)-Ferrugine
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              8116
_journal_page_last               8119
_journal_paper_doi               10.1021/jo801652x
_journal_volume                  73
_journal_year                    2008
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C14 H24 N2 O S2'
_chemical_formula_sum            'C14 H24 N2 O S2'
_chemical_formula_weight         300.47
_space_group_IT_number           82
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I -4'
_symmetry_space_group_name_H-M   'I -4'
_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            8
_cell_length_a                   22.3823(9)
_cell_length_b                   22.3823(9)
_cell_length_c                   6.5334(3)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      71.1558
_cell_measurement_theta_min      4.4128
_cell_volume                     3273.0(2)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 8.2556
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'OD Xcalibur PX Ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance Ultra (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54248
_diffrn_reflns_av_R_equivalents  0.0441
_diffrn_reflns_av_sigmaI/netI    0.0241
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            15847
_diffrn_reflns_theta_full        71.24
_diffrn_reflns_theta_max         71.24
_diffrn_reflns_theta_min         5.59
_exptl_absorpt_coefficient_mu    2.900
_exptl_absorpt_correction_T_max  0.80578
_exptl_absorpt_correction_T_min  0.64670
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.pre23_9 beta (release 18.06.2004 CrysAlis171 .NET)
(compiled Jun 18 2004,12:34:04)
Analytical numeric absorption correction using a multifaceted crystal
model based on expressions derived by R.C. Clark & J.S. Reid.
;
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.220
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             1296
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.153
_refine_diff_density_min         -0.113
_refine_diff_density_rms         0.031
_refine_ls_abs_structure_details
'Flack H D (1983), Acta Cryst. A39, 876-881, 1391 Friedel pairs'
_refine_ls_abs_structure_Flack   0.007(14)
_refine_ls_extinction_coef       0.00039(7)
_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   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         3102
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0301
_refine_ls_R_factor_gt           0.0289
_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^)+(0.0432P)^2^+0.5330P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0725
_refine_ls_wR_factor_ref         0.0735
_reflns_number_gt                2978
_reflns_number_total             3102
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo801652x_si_003.cif
_cod_data_source_block           Compound_26
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
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_database_code               4023777