Sequential reactions of trimethylsilyldiazomethane with 4-alkenyl ketones and aldehydes catalyzed by Lewis bases.
Liu, Huaqing; O'Connor, Matthew J; Sun, Chunrui; Wink, Donald J.; Lee, Daesung; Organic letters 15 (2013) 2974–2977; doi:10.1021/ol401124t

data_1556166
_publ_section_title
;
 Sequential reactions of trimethylsilyldiazomethane with 4-alkenyl ketones
 and aldehydes catalyzed by Lewis bases.
;
_journal_issue                   12
_journal_name_full               'Organic letters'
_journal_page_first              2974
_journal_page_last               2977
_journal_paper_doi               10.1021/ol401124t
_journal_volume                  15
_journal_year                    2013
_chemical_formula_sum            'C17 H24 N2 O Si'
_chemical_formula_weight         300.47
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 109.7600(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.2419(16)
_cell_length_b                   8.6081(10)
_cell_length_c                   15.4864(19)
_cell_measurement_reflns_used    5825
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.471
_cell_measurement_theta_min      2.748
_cell_volume                     1661.3(3)
_computing_cell_refinement       'Bruker saintplus (Bruker 1999)'
_computing_data_collection       'Bruker SMART (Bruker 2001)'
_computing_data_reduction        'Bruker saintplus (Bruker 1999)'
_computing_molecular_graphics    'ORTEP-3 for Windows v2.01'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       'omega scan'
_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  0.0310
_diffrn_reflns_av_sigmaI/netI    0.0262
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            18273
_diffrn_reflns_theta_full        27.58
_diffrn_reflns_theta_max         27.58
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    0.143
_exptl_absorpt_correction_T_max  0.9859
_exptl_absorpt_correction_T_min  0.9452
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.201
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.357
_refine_diff_density_min         -0.234
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     193
_refine_ls_number_reflns         3809
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.947
_refine_ls_R_factor_all          0.0482
_refine_ls_R_factor_gt           0.0350
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1130
_refine_ls_wR_factor_ref         0.1249
_reflns_number_gt                3077
_reflns_number_total             3809
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            ol401124t_si_005.cif
_cod_data_source_block           xray4157_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'none' was changed to
'?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               1556166