Catalytic, Asymmetric Indolizidinone Aza-Quaternary Stereocenter Synthesis: Expedient Synthesis of the Cylindricine Alkaloid Core
Dalton, Derek M.; Rovis, Tomislav; Organic Letters 15 (2013) 2346–; doi:10.1021/ol400529k

data_1512027
_publ_section_title
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 Catalytic, Asymmetric Indolizidinone Aza-Quaternary Stereocenter
 Synthesis: Expedient Synthesis of the Cylindricine Alkaloid Core
;
_journal_issue                   10
_journal_name_full               'Organic Letters'
_journal_page_first              2346
_journal_paper_doi               10.1021/ol400529k
_journal_volume                  15
_journal_year                    2013
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C16 H28 N O, Cl'
_chemical_formula_sum            'C16 H28 Cl N O'
_chemical_formula_weight         284.84
_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                   6.9763(5)
_cell_length_b                   13.1038(10)
_cell_length_c                   17.5908(13)
_cell_measurement_reflns_used    6374
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.05
_cell_measurement_theta_min      2.79
_cell_volume                     1608.1(2)
_computing_cell_refinement       'APEX2 (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2009)'
_computing_data_reduction        'APEX2 (Bruker, 2009)'
_computing_molecular_graphics    'APEX2 (Bruker, 2009)'
_computing_publication_material  'APEX2 (Bruker, 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XS (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0472
_diffrn_reflns_av_sigmaI/netI    0.0329
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            24048
_diffrn_reflns_theta_full        25.37
_diffrn_reflns_theta_max         25.37
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.232
_exptl_absorpt_correction_T_max  0.9835
_exptl_absorpt_correction_T_min  0.9482
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Sheldrick, G. M. (2008) SADABS. University of Gottingen, Germany.'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.177
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             620
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.926
_refine_diff_density_min         -0.316
_refine_diff_density_rms         0.066
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.05(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     178
_refine_ls_number_reflns         2954
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0
_refine_ls_R_factor_gt           0.0599
_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^)+(0.0831P)^2^+1.4489P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1535
_refine_ls_wR_factor_ref         0.1661
_reflns_number_gt                2392
_reflns_number_total             2954
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol400529k_si_001.cif
_cod_data_source_block           rovis159_0m
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.3.1 from 2005-06-27.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not determined' was changed to
'?' - the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1512027