An efficient synthesis of N-nitrosamines under solvent, metal and acid free conditions using tert-butyl nitrite
Chaudhary, Priyanka; Gupta, Surabhi; Muniyappan, Nalluchamy; Sabiah, Shahulhameed; Kandasamy, Jeyakumar; Green Chem. 18 (2016) 2323–; doi:10.1039/C5GC02880A

data_7224113
_publ_section_title
;
 An efficient synthesis of N-nitrosamines under solvent, metal and acid
 free conditions using tert-butyl nitrite
;
_journal_issue                   8
_journal_name_full               'Green Chem.'
_journal_page_first              2323
_journal_paper_doi               10.1039/C5GC02880A
_journal_volume                  18
_journal_year                    2016
_chemical_formula_sum            'C14 H14 N2 O2'
_chemical_formula_weight         242.27
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2015-12-30 deposited with the CCDC.
2016-02-01 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 93.766(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.5292(5)
_cell_length_b                   5.7936(3)
_cell_length_c                   13.9668(9)
_cell_measurement_reflns_used    3694
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      30.2
_cell_measurement_theta_min      2.9
_cell_volume                     607.93(6)
_computing_cell_refinement       'APEX2/SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT/XPREP (Bruker, 2004)'
_computing_molecular_graphics
'ORTEP3 (Farrugia, 1997) and Mercury (Bruno et al., 2002)'
_computing_publication_material  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution    'SIR92 (Altornare et al., 1993)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker axs kappa apex2 CCD Diffractometer'
_diffrn_measurement_method       '\w and \f scan'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0200
_diffrn_reflns_av_unetI/netI     0.0220
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            6532
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.000
_diffrn_reflns_theta_min         2.711
_diffrn_source                   'Sealed tube'
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.76
_exptl_absorpt_correction_T_min  0.75
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 1999)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.324
_exptl_crystal_description       block
_exptl_crystal_F_000             256
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.300
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.111
_refine_diff_density_min         -0.116
_refine_diff_density_rms         0.026
_refine_ls_abs_structure_details
;
 Flack x determined using 777 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.1(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         2141
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0381
_refine_ls_R_factor_gt           0.0299
_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^)+(0.0289P)^2^+0.0882P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0652
_refine_ls_wR_factor_ref         0.0712
_reflns_Friedel_coverage         0.804
_reflns_Friedel_fraction_full    0.997
_reflns_Friedel_fraction_max     0.997
_reflns_number_gt                1888
_reflns_number_total             2141
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5gc02880a2.cif
_cod_data_source_block           JAYA2
_cod_depositor_comments          'Adding full bibliography for 7224113.cif.'
_cod_database_code               7224113
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.973
_shelx_estimated_absorpt_t_max   0.982
_shelx_res_checksum              85349
_shelx_hkl_checksum              16088