Electrochemical Access to 8-(1-Phenyl-ethyl)-1,4-dioxa-8-aza-spiro[4.5]decane-7-carbonitrile. Application to the Asymmetric Syntheses of (+)-Myrtine and Alkaloid (+)-241D.
Vu, Van Ha; Louafi, Fadila; Girard, Nicolas; Marion, Ronan; Roisnel, Thierry; Dorcet, Vincent; Hurvois, Jean-Pierre; The Journal of organic chemistry 79 (2014) 3358–3373; doi:10.1021/jo500104c

data_4029271
_publ_section_title
;
 Electrochemical Access to
 8-(1-Phenyl-ethyl)-1,4-dioxa-8-aza-spiro[4.5]decane-7-carbonitrile.
 Application to the Asymmetric Syntheses of (+)-Myrtine and Alkaloid
 (+)-241D.
;
_journal_issue                   8
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              3358
_journal_page_last               3373
_journal_paper_doi               10.1021/jo500104c
_journal_volume                  79
_journal_year                    2014
_chemical_absolute_configuration syn
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C16 H20 N2 O2'
_chemical_formula_sum            'C16 H20 N2 O2'
_chemical_formula_weight         272.34
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      4
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2009-07-15T16:54:29-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 92.714(7)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   8.5091(19)
_cell_length_b                   5.3731(11)
_cell_length_c                   16.347(4)
_cell_measurement_reflns_used    4469
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.39
_cell_measurement_theta_min      2.4
_cell_measurement_wavelength     0.71073
_cell_volume                     746.6(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SAINT'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0465
_diffrn_reflns_av_unetI/netI     0.0304
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            9358
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.38
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.992
_exptl_absorpt_correction_T_min  0.941
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  [Sheldrick, G.M. (2002). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.212
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       stick
_exptl_crystal_F_000             292
_exptl_crystal_size_max          0.52
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.214
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   10(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     189
_refine_ls_number_reflns         1879
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0443
_refine_ls_R_factor_gt           0.0386
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0573P)^2^+0.0880P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0977
_refine_ls_wR_factor_ref         0.1031
_reflns_number_gt                1686
_reflns_number_total             1879
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo500104c_si_002.cif
_cod_data_source_block           job
_cod_depositor_comments
;Adding full bibliography for
 ./tmp-cod-update-bibliographies-12971/cifs/4029271.cif.
;
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4029271