Synthesis of Difluoroalkyl Unsaturated β-Amino Acid Derivatives Exclusively through Alkyne Difunctionalization.
Wang, Qiang; Jin, Jia-Ni; Chen, Xi; Wang, Xin-Gang; Zhang, Bo-Sheng; Ma, Jun-Wei; Liang, Yong-Min; The Journal of organic chemistry 83 (2018) 14626–14636; doi:10.1021/acs.joc.8b02440

data_4035693
_publ_section_title
;
 Synthesis of Difluoroalkyl Unsaturated \b-Amino Acid Derivatives
 Exclusively through Alkyne Difunctionalization.
;
_journal_issue                   23
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              14626
_journal_page_last               14636
_journal_paper_doi               10.1021/acs.joc.8b02440
_journal_volume                  83
_journal_year                    2018
_chemical_formula_moiety         'C19 H25 F2 N O5'
_chemical_formula_sum            'C19 H25 F2 N O5'
_chemical_formula_weight         385.40
_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'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2018-07-27
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 111.794(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.1264(7)
_cell_length_b                   12.1086(4)
_cell_length_c                   13.6351(9)
_cell_measurement_reflns_used    1936
_cell_measurement_temperature    173.00(10)
_cell_measurement_theta_max      27.5580
_cell_measurement_theta_min      3.7580
_cell_volume                     1859.0(2)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      173.00(10)
_diffrn_detector_area_resol_mean 16.0733
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_details
;
  1 omega  -48.00   28.00   1.0000    2.0000
omega____ theta____ kappa____ phi______ frames
    -       22.7867  -57.0000  -30.0000 76

  2 omega  -10.00   30.00   1.0000    2.0000
omega____ theta____ kappa____ phi______ frames
    -       22.7867   77.0000 -180.0000 40

  3 omega   -9.00   96.00   1.0000    2.0000
omega____ theta____ kappa____ phi______ frames
    -       22.7867   38.0000  120.0000 105
;
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_UB_11      0.0624307000
_diffrn_orient_matrix_UB_12      -0.0080094000
_diffrn_orient_matrix_UB_13      0.0200315000
_diffrn_orient_matrix_UB_21      0.0009466000
_diffrn_orient_matrix_UB_22      0.0111151000
_diffrn_orient_matrix_UB_23      -0.0507482000
_diffrn_orient_matrix_UB_31      0.0085675000
_diffrn_orient_matrix_UB_32      0.0569368000
_diffrn_orient_matrix_UB_33      0.0127104000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0283
_diffrn_reflns_av_unetI/netI     0.0509
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            6815
_diffrn_reflns_theta_full        26.02
_diffrn_reflns_theta_max         26.02
_diffrn_reflns_theta_min         3.48
_diffrn_source                   'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.112
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.65579
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.377
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.193
_refine_diff_density_min         -0.251
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         3653
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0657
_refine_ls_R_factor_gt           0.0462
_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^)+(0.0454P)^2^+0.1740P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1022
_refine_ls_wR_factor_ref         0.1154
_reflns_number_gt                2737
_reflns_number_total             3653
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo8b02440_si_004.cif
_cod_data_source_block           2676
_cod_original_cell_volume        1858.99(17)
_cod_database_code               4035693
_reflns_odcompleteness_completeness 99.65
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H) groups
2.a Ternary CH refined with riding coordinates:
 C3(H3A), C5(H5), C8(H8)
2.b Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C4(H4A,H4B), C6(H6A,H6B), C7(H7A,H7B), C9(H9A,H9B), C10(H10A,
 H10B), C15(H15A,H15B), C18(H18A,H18B)
2.c Aromatic/amide H refined with riding coordinates:
 N1(H1), C12(H12)
2.d Idealised Me refined as rotating group:
 C19(H19A,H19B,H19C)
2.e Idealised tetrahedral OH refined as rotating group:
 O3(H3)
;
_olex2_date_sample_data_collection 2018-07-27
_olex2_submission_special_instructions 'No special instructions were received'