Facile synthesis of functionalized 6-cyano-2-oxa-7-azabicyclo[4.1.0]hept-3-en-1-yl acetates : a catalyst free approach to access the pyran fused 2-acetoxy-NH-aziridines
Das, Asish R.; Mukherjee, Prasun; RSC Adv.  (2015) –; doi:10.1039/C5RA24510A

data_7223500
_publ_section_title
;
 Facile synthesis of functionalized
 6-cyano-2-oxa-7-azabicyclo[4.1.0]hept-3-en-1-yl acetates : a catalyst
 free approach to access the pyran fused 2-acetoxy-NH-aziridines
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C5RA24510A
_journal_year                    2015
_chemical_formula_moiety         'C18 H16 N2 O5'
_chemical_formula_sum            'C18 H16 N2 O5'
_chemical_formula_weight         340.33
_space_group_IT_number           2
_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           SHELXL-97
_audit_update_record
;
2015-11-01 deposited with the CCDC.
2015-12-14 downloaded from the CCDC.
;
_cell_angle_alpha                76.794(10)
_cell_angle_beta                 72.910(9)
_cell_angle_gamma                79.128(9)
_cell_formula_units_Z            2
_cell_length_a                   8.1462(19)
_cell_length_b                   9.013(2)
_cell_length_c                   12.122(3)
_cell_measurement_temperature    296(2)
_cell_volume                     821.1(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WINGX V1.80.03'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0213
_diffrn_reflns_av_sigmaI/netI    0.0275
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            8736
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.79
_exptl_absorpt_coefficient_mu    0.102
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.381
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       granular
_exptl_crystal_F_000             358
_refine_diff_density_max         0.204
_refine_diff_density_min         -0.304
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.677
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         3181
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.677
_refine_ls_R_factor_all          0.0503
_refine_ls_R_factor_gt           0.0452
_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^)+(0.1993P)^2^+0.2536P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1557
_refine_ls_wR_factor_ref         0.1725
_reflns_number_gt                2741
_reflns_number_total             3181
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ra24510a2.cif
_cod_data_source_block           isohc_0m
_cod_original_cell_volume        821.2(3)
_cod_database_code               7223500