An Experimental and Computational Approach to Understanding the Reactions of Acyl Nitroso Compounds in [4 + 2] Cycloadditions.
Chaiyaveij, Duangduan; Batsanov, Andrei S.; Fox, Mark A.; Marder, Todd B.; Whiting, Andrew; The Journal of organic chemistry 80 (2015) 9518–9534; doi:10.1021/acs.joc.5b01470

data_4036309
_publ_section_title
;
 An Experimental and Computational Approach to Understanding the Reactions
 of Acyl Nitroso Compounds in [4 + 2] Cycloadditions.
;
_journal_issue                   19
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              9518
_journal_page_last               9534
_journal_paper_doi               10.1021/acs.joc.5b01470
_journal_volume                  80
_journal_year                    2015
_chemical_formula_moiety         'C13 H16 N2 O2'
_chemical_formula_sum            'C13 H16 N2 O2'
_chemical_formula_weight         232.28
_chemical_melting_point          374
_chemical_name_systematic
;
4,5-Dimethyl-N-phenyl-3,6-dihydro-2H-1,2-oxazine-2-carbox-amide 
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2012-03-01
_audit_creation_method
;
  Olex2 1.1-beta
  (compiled 2011.11.01 svn.r2039, GUI svn.r3906)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.5078(8)
_cell_length_b                   9.1660(5)
_cell_length_c                   19.8312(13)
_cell_measurement_reflns_used    9141
_cell_measurement_temperature    120
_cell_measurement_theta_max      29.999
_cell_measurement_theta_min      2.548
_cell_volume                     2455.4(3)
_computing_cell_refinement       'SAINT v7.46A (Bruker, 2008)'
_computing_data_collection       'SMART v5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT v7.46A (Bruker, 2008)'
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
XL, G.M. Sheldrick, Acta Cryst. (2008). A64, 112-122
;
_computing_structure_solution
;
XS, G.M. Sheldrick, Acta Cryst. (2008). A64, 112-122
;
_diffrn_ambient_temperature      120
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 5.6
_diffrn_detector_type            'Bruker SMART CCD 6000 area detector'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART CCD 6000 area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_xray_symbol    K-L~3~
_diffrn_reflns_av_R_equivalents  0.0318
_diffrn_reflns_av_unetI/netI     0.0183
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            27298
_diffrn_reflns_theta_full        30.01
_diffrn_reflns_theta_max         30.01
_diffrn_reflns_theta_min         2.05
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           30.0
_diffrn_source_power             1.5
_diffrn_source_target            Mo
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.6333
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2009/1 (Bruker) was used for absorption correction.
R(int) was 0.0896 before and 0.0500 after correction.
The Ratio of minimum to maximum transmission is 0.8489.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.257
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.85
_exptl_crystal_size_mid          0.8
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.337
_refine_diff_density_min         -0.177
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     161
_refine_ls_number_reflns         3576
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0528
_refine_ls_R_factor_gt           0.0426
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0707P)^2^+0.6475P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1151
_refine_ls_wR_factor_ref         0.1258
_reflns_number_gt                2937
_reflns_number_total             3576
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo5b01470_si_002.cif
_cod_data_source_block           25
_cod_database_code               4036309