Direct benzylic metalation of a phenethylamine derivative: potassium as the key to both generation and stabilization of a labile anion.
Unkelbach, Christian; Rosenbaum, Hannah S.; Strohmann, Carsten; Chemical communications (Cambridge, England) 48 (2012) 10612–10614; doi:10.1039/c2cc35888c

data_7112561
_publ_section_title
;
 Direct benzylic metalation of a phenethylamine derivative: potassium as
 the key to both generation and stabilization of a labile anion.
;
_journal_issue                   86
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              10612
_journal_page_last               10614
_journal_paper_doi               10.1039/c2cc35888c
_journal_volume                  48
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_sum            'C18 H28 K N O2'
_chemical_formula_weight         329.52
_chemical_name_systematic
;
?
;
_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           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                81.047(5)
_cell_angle_beta                 74.192(5)
_cell_angle_gamma                61.176(6)
_cell_formula_units_Z            2
_cell_length_a                   9.5449(6)
_cell_length_b                   9.8534(5)
_cell_length_c                   11.6027(6)
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.0
_cell_measurement_theta_min      2.36
_cell_volume                     919.49(10)
_computing_cell_refinement       'CrysAlis Red (Oxford Diffraction, 2006)'
_computing_data_collection       'CrysAlis CCD (Oxford Diffraction, 2006)'
_computing_data_reduction        'CrysAlis Red (Oxford Diffraction, 2006)'
_computing_molecular_graphics    'Ortep-3 V1.073 (Farrugia, 2001)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-90 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Oxford Diffraction XCalibur S'
_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  0.0320
_diffrn_reflns_av_sigmaI/netI    0.1100
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            14339
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.36
_exptl_absorpt_coefficient_mu    0.295
_exptl_absorpt_correction_T_max  0.915
_exptl_absorpt_correction_T_min  0.868
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlis Red (Oxford Diffraction 2006)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.190
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             340
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.336
_refine_diff_density_min         -0.231
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.03(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.004
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     431
_refine_ls_number_reflns         7893
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.0853
_refine_ls_R_factor_gt           0.0432
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0150P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0613
_refine_ls_wR_factor_ref         0.0645
_reflns_number_gt                4462
_reflns_number_total             7893
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc35888c.txt
_cod_data_source_block           strohmann9
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        919.49(9)
_cod_database_code               7112561