Enantioselective Aminocatalytic Synthesis of Tetrahydropyrano [2,3-c]Pyrazoles via Domino Michael-Hemiacetalization Reaction with Alkylidene Pyrazolones
Pan, Subhas Chandra; Maity, Rajendra; Org. Biomol. Chem.  (2017) –; doi:10.1039/C7OB02170D

data_7155880
_publ_section_title
;
 Enantioselective Aminocatalytic Synthesis of Tetrahydropyrano
 [2,3-c]Pyrazoles via Domino Michael-Hemiacetalization Reaction with
 Alkylidene Pyrazolones
;
_journal_name_full               'Org. Biomol. Chem.'
_journal_paper_doi               10.1039/C7OB02170D
_journal_year                    2017
_chemical_formula_moiety         'C23 H24 N2 O3'
_chemical_formula_sum            'C23 H24 N2 O3'
_chemical_formula_weight         376.44
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2017-06-12
_audit_creation_method
;
Olex2 1.2
(compiled 2017.03.28 svn.r3405 for OlexSys, GUI svn.r5337)
;
_audit_update_record
;
2017-06-14 deposited with the CCDC.
2017-09-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 104.449(16)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.6633(19)
_cell_length_b                   16.796(2)
_cell_length_c                   9.3590(15)
_cell_measurement_reflns_used    1858
_cell_measurement_temperature    100.0(2)
_cell_measurement_theta_max      30.3360
_cell_measurement_theta_min      2.7060
_cell_volume                     1927.6(5)
_computing_cell_refinement       'CrysAlisPro 1.171.39.7f (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.39.7f (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.39.7f (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100.0(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.941
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -69.00 118.20   0.30   30.00    --   29.89  54.00 -60.00  624
  2  \w    -69.00 118.20   0.30   30.00    --   29.89  54.00-150.00  624
  3  \w    -69.00  12.00   0.30   30.00    --   29.89  54.00  60.00  270
;
_diffrn_measurement_device       'two-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Mini (ROW)'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0570396000
_diffrn_orient_matrix_UB_12      -0.0029454000
_diffrn_orient_matrix_UB_13      -0.0077253000
_diffrn_orient_matrix_UB_21      0.0085721000
_diffrn_orient_matrix_UB_22      0.0028618000
_diffrn_orient_matrix_UB_23      0.0776813000
_diffrn_orient_matrix_UB_31      -0.0046005000
_diffrn_orient_matrix_UB_32      0.0420190000
_diffrn_orient_matrix_UB_33      -0.0057128000
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0906
_diffrn_reflns_av_unetI/netI     0.1215
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.941
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            22212
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.941
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         32.859
_diffrn_reflns_theta_min         2.554
_diffrn_source                   'fine-focus sealed X-ray tube'
_diffrn_source_type              'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.97555
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.7f (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear bluish colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   bluish
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.297
_exptl_crystal_description       plate
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.388
_refine_diff_density_min         -0.294
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         6770
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.1554
_refine_ls_R_factor_gt           0.0698
_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^)+(0.0664P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1432
_refine_ls_wR_factor_ref         0.1859
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3391
_reflns_number_total             6770
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ob02170d2.cif
_cod_data_source_block           v-1-4r-100k
_cod_database_code               7155880
_shelx_shelxl_version_number     2014/7
_chemical_oxdiff_formula         'C23 H24 N2 O3'
_reflns_odcompleteness_completeness 99.83
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     25.01
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H) groups
2.a Ternary CH refined with riding coordinates:
 C2(H2), C7(H7)
2.b Secondary CH2 refined with riding coordinates:
 C6(H6A,H6B), C5(H5A,H5B), C4(H4A,H4B), C3(H3A,H3B)
2.c Aromatic/amide H refined with riding coordinates:
 C13(H13), C17(H17), C14(H14), C23(H23), C15(H15), C19(H19), C16(H16),
 C22(H22), C21(H21), C20(H20)
2.d Idealised Me refined as rotating group:
 C11(H11A,H11B,H11C)
2.e Idealised tetrahedral OH refined as rotating group:
 O3(H3)
;
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.074
_oxdiff_exptl_absorpt_empirical_full_min 0.944