Efficient catalyst for one-pot solvent free enantioselective Knoevenagel-[3+3] cycloaddition and Knoevenagel-Hetero-Diels-Alder Reactions
Bhat, Sujata Vasudev; Fernandes, Sylvia; Rajakannu, Palanisamy; RSC Adv.  (2015) –; doi:10.1039/C5RA09865C

data_7221687
_publ_section_title
;
 Efficient catalyst for one-pot solvent free enantioselective
 Knoevenagel-[3+3] cycloaddition and Knoevenagel-Hetero-Diels-Alder
 Reactions
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_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C5RA09865C
_journal_year                    2015
_chemical_formula_moiety         'C17 H26 O2'
_chemical_formula_sum            'C17 H26 O2'
_chemical_formula_weight         262.38
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-04-21 deposited with the CCDC.
2015-07-29 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 96.062(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.9897(17)
_cell_length_b                   12.612(4)
_cell_length_c                   19.986(6)
_cell_measurement_reflns_used    2227
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      31.4
_cell_measurement_theta_min      2.2
_cell_volume                     1501.3(8)
_computing_cell_refinement       'CrystalClear-SM Expert 2.0 r4'
_computing_data_collection       'CrystalClear-SM Expert 2.0 r4 (Rigaku, 2009)'
_computing_data_reduction        'CrystalClear-SM Expert 2.0 r4'
_computing_molecular_graphics    'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_publication_material  'CrystalStructure 4.0'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS86 (Sheldrick, 1985)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Rigaku Saturn724+'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0968
_diffrn_reflns_av_sigmaI/netI    0.0531
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            10352
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6760
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'NUMABS (Rigaku, 1999)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.161
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.379
_refine_diff_density_min         -0.454
_refine_diff_density_rms         0.116
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.207
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2596
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.207
_refine_ls_R_factor_all          0.0747
_refine_ls_R_factor_gt           0.0650
_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^)+(0.1281P)^2^+0.6007P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1928
_refine_ls_wR_factor_ref         0.2264
_reflns_number_gt                2518
_reflns_number_total             2596
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ra09865c2.cif
_cod_data_source_block           sujata-90-569
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7221687