N-Heterocyclic carbene (NHC) catalyzed chemoselective acylation of alcohols in the presence of amines with various acylating reagents
Samanta, Ramesh C.; De Sarkar, Suman; Fröhlich, Roland; Grimme, Stefan; Studer, Armido; Chemical Science 4 (2013) 2177–; doi:10.1039/c3sc00099k

data_1514716
_publ_section_title
;
 N-Heterocyclic carbene (NHC) catalyzed chemoselective acylation of
 alcohols in the presence of amines with various acylating reagents
;
_journal_issue                   5
_journal_name_full               'Chemical Science'
_journal_page_first              2177
_journal_paper_doi               10.1039/c3sc00099k
_journal_volume                  4
_journal_year                    2013
_chemical_formula_sum            'C13 H13 F3 N2 O4 S'
_chemical_formula_weight         350.31
_space_group_IT_number           2
_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                81.624(2)
_cell_angle_beta                 89.228(2)
_cell_angle_gamma                75.671(1)
_cell_formula_units_Z            2
_cell_length_a                   6.2339(1)
_cell_length_b                   8.9683(2)
_cell_length_c                   14.0067(3)
_cell_measurement_reflns_used    2403
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      68.25
_cell_measurement_theta_min      0.88
_cell_volume                     750.42(3)
_computing_cell_refinement       'Collect (Nonius B.V., 1998)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP (BrukerAXS, 2000)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.951
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.036
_diffrn_reflns_av_sigmaI/netI    0.0270
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            7153
_diffrn_reflns_theta_full        66.67
_diffrn_reflns_theta_max         66.67
_diffrn_reflns_theta_min         5.15
_exptl_absorpt_coefficient_mu    2.453
_exptl_absorpt_correction_T_max  0.7573
_exptl_absorpt_correction_T_min  0.4639
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.550
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       column
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.260
_refine_diff_density_min         -0.351
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         2534
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.0479
_refine_ls_R_factor_gt           0.0455
_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^)+(0.0776P)^2^+0.3940P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1179
_refine_ls_wR_factor_ref         0.1203
_reflns_number_gt                2360
_reflns_number_total             2534
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3sc00099k.txt
_cod_data_source_block           stu6009
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1514716