Electroreductive Coupling of Optically Active α,β-Unsaturated Carbonyl Compounds with Diaryl Ketones: Asymmetric Synthesis of 4,5,5-Trisubstituted γ-Butyrolactones.
Kise, Naoki; Hamada, Yusuke; Sakurai, Toshihiko; Organic letters 16 (2014) 3348–3351; doi:10.1021/ol5013789

data_1516526
_publ_section_title
;
 Electroreductive Coupling of Optically Active \a,\b-Unsaturated Carbonyl
 Compounds with Diaryl Ketones: Asymmetric Synthesis of
 4,5,5-Trisubstituted \g-Butyrolactones.
;
_journal_issue                   12
_journal_name_full               'Organic letters'
_journal_page_first              3348
_journal_page_last               3351
_journal_paper_doi               10.1021/ol5013789
_journal_volume                  16
_journal_year                    2014
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C28 H30 N2 O3'
_chemical_formula_sum            'C28 H30 N2 O3'
_chemical_formula_weight         442.54
_chemical_melting_point          505.0(10)
_chemical_name_systematic
; 
(4R,5S)-1-((S)-4-hydroxy-3-methyl-4,4-diphenylbutanoyl)-3,4-dimethyl-5-phenylimidazolidin-2-one 
;
_space_group_IT_number           1
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  'P 1'
_symmetry_space_group_name_H-M   'P 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                89.6(3)
_cell_angle_beta                 87.7(3)
_cell_angle_gamma                80.0(2)
_cell_formula_units_Z            2
_cell_length_a                   6.630(18)
_cell_length_b                   8.27(2)
_cell_length_c                   22.07(10)
_cell_measurement_temperature    298(2)
_cell_volume                     1191(7)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        PROCESS-AUTO
_computing_publication_material  yadokari-XG
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0264
_diffrn_reflns_av_sigmaI/netI    0.0330
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            11399
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.11
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.9841
_exptl_absorpt_correction_T_min  0.9610
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
    Higashi, T. (1995). Program for Absorption Correction.
    Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.234
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             472
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.137
_refine_diff_density_min         -0.178
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.6(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.967
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     603
_refine_ls_number_reflns         8746
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.966
_refine_ls_R_factor_all          0.0682
_refine_ls_R_factor_gt           0.0448
_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^)+(0.0680P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1019
_refine_ls_wR_factor_ref         0.1095
_reflns_number_gt                6008
_reflns_number_total             8746
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5013789_si_003.cif
_cod_data_source_block           (3S')-4a
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '504-506' was changed to '505.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 1516523--1516526.cif.
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_cod_database_code               1516526