Chemoselective Intermolecular Cross-Enolate-Type Coupling of Amides
Kaiser, Daniel; Teskey, Christopher J.; Adler, Pauline; Maulide, Nuno; Journal of the American Chemical Society  (2017) –; doi:10.1021/jacs.7b08813

data_4126689
_publ_section_title
;
 Chemoselective Intermolecular Cross-Enolate-Type Coupling of Amides
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.7b08813
_journal_year                    2017
_chemical_formula_moiety         'C20 H28 N2 O2'
_chemical_formula_sum            'C20 H28 N2 O2'
_chemical_formula_weight         328.44
_chemical_name_systematic
;(R*)-1-methyl-3-((S*)-1-oxo-4-phenyl-1-(pyrrolidin-1-yl)
butan-2-yl)piperidin-2-one
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2017-10-03
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5375)
;
_cell_angle_alpha                90
_cell_angle_beta                 104.184(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.8604(14)
_cell_length_b                   5.8441(5)
_cell_length_c                   17.2700(14)
_cell_measurement_reflns_used    9900
_cell_measurement_temperature    100.0
_cell_measurement_theta_max      30.079
_cell_measurement_theta_min      2.429
_cell_volume                     1747.7(2)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XS (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0637
_diffrn_reflns_av_unetI/netI     0.0261
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            79104
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.189
_diffrn_reflns_theta_min         2.352
_diffrn_source                   'sealed xray tube'
_diffrn_source_type              'Incoatec IuS'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.5940
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction. 
wR2(int) was 0.1446 before and 0.0608 after correction. 
The Ratio of minimum to maximum transmission is 0.7586. 
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.248
_exptl_crystal_description       block
_exptl_crystal_F_000             712
_exptl_crystal_recrystallization_method 'evap from Diethylether'
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.396
_refine_diff_density_min         -0.214
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     218
_refine_ls_number_reflns         5150
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0490
_refine_ls_R_factor_gt           0.0407
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0507P)^2^+0.6729P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1071
_refine_ls_wR_factor_ref         0.1128
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4368
_reflns_number_total             5150
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b08813_si_003.cif
_cod_data_source_block           chtecjt02200c_p21c
_cod_database_code               4126689
_shelxl_version_number           2013-3
_shelx_estimated_absorpt_t_max   0.994
_shelx_estimated_absorpt_t_min   0.961