Construction of 2,3,4,5-tetrahydro-1,2,4-triazines via [4 + 2] cycloaddition of α-halogeno hydrazones to imines
Zhao, Hong-Wu; Pang, Hai-Liang; Zhao, Yu-Di; Liu, Yue-Yang; Zhao, Li-Jiao; Chen, Xiao-Qin; Song, Xiu-Qing; Feng, Ning-Ning; Du, Juan; RSC Adv. 7 (2017) 9264–; doi:10.1039/C6RA27767E

data_7227604
_publ_section_title
;
 Construction of 2,3,4,5-tetrahydro-1,2,4-triazines via [4 + 2]
 cycloaddition of \a-halogeno hydrazones to imines
;
_journal_issue                   15
_journal_name_full               'RSC Adv.'
_journal_page_first              9264
_journal_paper_doi               10.1039/C6RA27767E
_journal_volume                  7
_journal_year                    2017
_chemical_formula_sum            'C24 H23 N3 O'
_chemical_formula_weight         369.45
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-10-07 deposited with the CCDC.
2017-01-25 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.3996(18)
_cell_length_b                   12.191(2)
_cell_length_c                   22.958(3)
_cell_measurement_reflns_used    10997
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     3750.3(9)
_computing_cell_refinement       'CrystalClear-SM Expert 2.1 b42'
_computing_data_collection       'CrystalClear-SM Expert 2.1 b42 (Rigaku, 2015)'
_computing_data_reduction        'CrystalClear-SM Expert 2.1 b42'
_computing_molecular_graphics    'CrystalStructure 4.1'
_computing_publication_material  'CrystalStructure 4.1 (Rigaku, 2014)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 5.814
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Rigaku XtaLAB P200'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  multilayer
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0237
_diffrn_reflns_av_sigmaI/netI    0.0100
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            45028
_diffrn_reflns_theta_full        27.62
_diffrn_reflns_theta_max         27.62
_diffrn_reflns_theta_min         3.04
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.9903
_exptl_absorpt_correction_T_min  0.9839
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.309
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1568
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.337
_refine_diff_density_min         -0.251
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         4327
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0377
_refine_ls_R_factor_gt           0.0343
_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^)+(0.0481P)^2^+1.3751P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0915
_refine_ls_wR_factor_ref         0.0934
_reflns_number_gt                3877
_reflns_number_total             4327
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra27767e2.cif
_cod_data_source_block           m20160920e1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to 'constr'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 
;
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7227604