Mechanistic insights into the potassium tert-butoxide-mediated synthesis of N-heterobiaryls.
Stephens, David E.; Lakey-Beitia, Johant; Burch, Jessica E.; Arman, Hadi D.; Larionov, Oleg V.; Chemical communications (Cambridge, England) 52 (2016) 9945–9948; doi:10.1039/c6cc04816a

data_7124817
_publ_section_title
;
 Mechanistic insights into the potassium tert-butoxide-mediated synthesis
 of N-heterobiaryls.
;
_journal_issue                   64
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              9945
_journal_page_last               9948
_journal_paper_doi               10.1039/c6cc04816a
_journal_volume                  52
_journal_year                    2016
_chemical_formula_moiety         'C10 H9 N O, 2(H2 O)'
_chemical_formula_sum            'C10 H13 N O3'
_chemical_formula_weight         195.21
_chemical_name_systematic        '4-Methylquinoline N-Oxide Dihydrate'
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_date             2016-01-14
_audit_creation_method
;
Olex2 1.2
(compiled 2015.01.26 svn.r3150 for OlexSys, GUI svn.r4998)
;
_audit_update_record
;
2016-04-14 deposited with the CCDC.
2016-07-15 downloaded from the CCDC.
;
_cell_angle_alpha                107.219(6)
_cell_angle_beta                 111.191(11)
_cell_angle_gamma                92.478(5)
_cell_formula_units_Z            2
_cell_length_a                   6.690(4)
_cell_length_b                   8.863(5)
_cell_length_c                   9.115(6)
_cell_measurement_reflns_used    1460
_cell_measurement_temperature    98
_cell_measurement_theta_max      40.2
_cell_measurement_theta_min      2.4
_cell_volume                     474.4(5)
_computing_cell_refinement
;
CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_data_collection
;
CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_data_reduction
;
CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      98
_diffrn_detector                 CCD
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_details
;
scan:
	Number of images: 182
	           Slice: -58.0000 - 33.0000
	     Image width: 0.5000
	        Exp time: 35.0000
	   Rotation axis: Omega
	           Omega: 0.0000
	           Kappa: 0.0000
	             Phi: 90.0000
	             XTD: 34.5856
	          2theta: -34.7176
scan:
	Number of images: 150
	           Slice: -68.0000 - 7.0000
	     Image width: 0.5000
	        Exp time: 35.0000
	   Rotation axis: Omega
	           Omega: 0.0000
	           Kappa: 0.0000
	             Phi: 0.0000
	             XTD: 34.5856
	          2theta: -34.7176
scan:
	Number of images: 114
	           Slice: -68.0000 - -11.0000
	     Image width: 0.5000
	        Exp time: 35.0000
	   Rotation axis: Omega
	           Omega: 0.0000
	           Kappa: 70.0000
	             Phi: 0.0000
	             XTD: 34.5856
	          2theta: -34.7176
scan:
	Number of images: 110
	           Slice: -66.0000 - -11.0000
	     Image width: 0.5000
	        Exp time: 35.0000
	   Rotation axis: Omega
	           Omega: 0.0000
	           Kappa: 70.0000
	             Phi: 180.0000
	             XTD: 34.5856
	          2theta: -34.7176
;
_diffrn_measurement_device
;
AFC12 (Right): Kappa 3 circle
;
_diffrn_measurement_device_type
;
Rigaku Saturn724 (2x2 bin mode)
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_measurement_specimen_support Fiber
_diffrn_orient_matrix_type       d*Trek
_diffrn_orient_matrix_UB_11      0.121914
_diffrn_orient_matrix_UB_12      -0.068341
_diffrn_orient_matrix_UB_13      0.083188
_diffrn_orient_matrix_UB_21      -0.015310
_diffrn_orient_matrix_UB_22      0.053663
_diffrn_orient_matrix_UB_23      0.106049
_diffrn_orient_matrix_UB_31      -0.038943
_diffrn_orient_matrix_UB_32      -0.083792
_diffrn_orient_matrix_UB_33      0.083985
_diffrn_radiation_monochromator  'Graphite Monochromator'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0350
_diffrn_reflns_av_unetI/netI     0.0360
_diffrn_reflns_Laue_measured_fraction_full 0.987
_diffrn_reflns_Laue_measured_fraction_max 0.985
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            2941
_diffrn_reflns_point_group_measured_fraction_full 0.987
_diffrn_reflns_point_group_measured_fraction_max 0.985
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.496
_diffrn_reflns_theta_min         2.441
_diffrn_source                   'Sealed Tube'
_diffrn_source_current           40.0
_diffrn_source_power             2.0
_diffrn_source_voltage           50.0
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.533
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Higashi, 1995)'
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.366
_exptl_crystal_description       plate
_exptl_crystal_F_000             208
_exptl_crystal_recrystallization_method
'vapor diffusion with acetonitrile and hexanes'
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.393
_refine_diff_density_min         -0.346
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.991
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     137
_refine_ls_number_reflns         2135
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.991
_refine_ls_R_factor_all          0.0551
_refine_ls_R_factor_gt           0.0486
_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^)+(0.0480P)^2^+0.3000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1138
_refine_ls_wR_factor_ref         0.1186
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1817
_reflns_number_total             2135
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6cc04816a2.cif
_cod_data_source_block           cd1403a
_cod_database_code               7124817
_shelx_estimated_absorpt_t_max   0.990
_shelx_estimated_absorpt_t_min   0.951
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H) groups, All C(H,H,H) groups, All O(H,H) groups
2.a Free rotating group:
 O2(H2A,H2B)
2.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C8(H8), C5(H5), C2(H2), C7(H7), C6(H6)
2.c Idealised Me refined as rotating group:
 C10(H10A,H10B,H10C)
;
_shelx_shelxl_version_number     2014/7
_olex2_exptl_crystal_mounting_method 'nylon loop'
_olex2_submission_special_instructions 'No special instructions were received'