Indium-Mediated Asymmetric Intramolecular Allenylation of N-tert-Butanesulfinyl Imines: Efficient and Practical Access to Chiral 3-Allenyl-4-aminochromanes.
Su, Lin; Zhu, Ting-Shun; Xu, Ming-Hua; Organic letters 16 (2014) 4118–4121; doi:10.1021/ol501815e

data_1517234
_publ_section_title
;
 Indium-Mediated Asymmetric Intramolecular Allenylation of
 N-tert-Butanesulfinyl Imines: Efficient and Practical Access to Chiral
 3-Allenyl-4-aminochromanes.
;
_journal_issue                   16
_journal_name_full               'Organic letters'
_journal_page_first              4118
_journal_page_last               4121
_journal_paper_doi               10.1021/ol501815e
_journal_volume                  16
_journal_year                    2014
_chemical_absolute_configuration S
_chemical_formula_sum            'C16 H17 N O2 S'
_chemical_formula_weight         287.37
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           5
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
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_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 110.988(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.1174(6)
_cell_length_b                   6.6815(2)
_cell_length_c                   13.5889(3)
_cell_measurement_temperature    296(2)
_cell_volume                     1620.59(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0186
_diffrn_reflns_av_sigmaI/netI    0.0289
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            4800
_diffrn_reflns_theta_full        24.99
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_exptl_absorpt_coefficient_mu    0.200
_exptl_absorpt_correction_T_max  0.9803
_exptl_absorpt_correction_T_min  0.9611
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.178
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.248
_refine_diff_density_min         -0.279
_refine_diff_density_rms         0.031
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.15(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.263
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         2623
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_refine_ls_R_factor_all          0.0425
_refine_ls_R_factor_gt           0.0360
_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^)+(0.0448P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_refine_ls_wR_factor_ref         0.0917
_reflns_number_gt                2371
_reflns_number_total             2623
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol501815e_si_001.cif
_cod_data_source_block           2013112_0ma
_cod_depositor_comments
'Adding full bibliography for 1517232--1517235.cif.'
_cod_original_cell_volume        1620.59(8)
_cod_original_sg_symbol_H-M      C2
_cod_database_code               1517234