Regioselective alkylation of a methylene group via meta-bridging of calix[4]arenes
Petr Slavik; Hana Dvorakova; Vaclav Eigner; Pavel Lhotak; Chem.Commun. 50 (2014) 10112–; doi:10.1039/C4cc04356A

data_7115535
_publ_section_title
;
 Regioselective alkylation of a methylene group via meta-bridging of
 calix[4]arenes
;
_journal_name_full               Chem.Commun.
_journal_page_first              10112
_journal_paper_doi               10.1039/C4cc04356A
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C43 H52 O4'
_chemical_formula_sum            'C43 H52 O4'
_chemical_formula_weight         632.88
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                89.880(2)
_cell_angle_beta                 75.473(2)
_cell_angle_gamma                75.260(2)
_cell_formula_units_Z            2
_cell_length_a                   10.0808(3)
_cell_length_b                   12.8064(3)
_cell_length_c                   15.1154(3)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    180
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     1822.85(8)
_computing_cell_refinement       'CrysAlis, (Oxford Diffraction, 2002)'
_computing_data_collection       'Xcalibur, (Oxford Diffraction, 2002)'
_computing_data_reduction        'CrysAlis, (Oxford Diffraction, 2002)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_pressure         101
_diffrn_ambient_temperature      180
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.962
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Oxford Diffraction XCALIBUR'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.024
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            20812
_diffrn_reflns_theta_full        66.873
_diffrn_reflns_theta_max         75.992
_diffrn_reflns_theta_min         4.533
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.561
_exptl_absorpt_correction_T_max  0.87
_exptl_absorpt_correction_T_min  0.49
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlis, (Oxford Diffraction, 2002)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.153
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             684
_exptl_crystal_size_max          0.420
_exptl_crystal_size_mid          0.310
_exptl_crystal_size_min          0.240
_refine_diff_density_max         0.61
_refine_diff_density_min         -0.34
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   0.9584
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     449
_refine_ls_number_reflns         7316
_refine_ls_number_restraints     28
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0543
_refine_ls_shift/su_max          0.0024700
_refine_ls_shift/su_mean         0.0004156
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982) 
 [weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)] 
 where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax 
 Method = Robust Weighting (Prince, 1982) 
 W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^ 
 A~i~ are: 
 0.267E+04 0.448E+04 0.267E+04 0.106E+04 223. 
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1450
_refine_ls_wR_factor_gt          0.1375
_refine_ls_wR_factor_ref         0.1450
_reflns_limit_h_max              12
_reflns_limit_h_min              -11
_reflns_limit_k_max              16
_reflns_limit_k_min              -16
_reflns_limit_l_max              18
_reflns_limit_l_min              0
_reflns_number_gt                6501
_reflns_number_total             7316
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   3.39
_oxford_diffrn_Wilson_scale      0.03
_oxford_refine_ls_r_factor_ref   0.0594
_oxford_refine_ls_scale          6.30(11)
_oxford_reflns_number_all        7316
_oxford_reflns_threshold_expression_ref I>-3.0\s(I)
_cod_data_source_file            c4cc04356a2.cif
_cod_data_source_block           1
_cod_original_cell_volume        1822.85(9)
_cod_database_code               7115535
_iucr_refine_instruction_details_constraints
;
BLOCK SCALE X'S, U'S 
EQUIVALENCE PART(1001, OCC) PART(1002, OCC) 
WEIGHT -1 PART(1002, OCC) 
RIDE C   (   2,X'S) H   (  21,X'S) H   (  22,X'S) 
RIDE C   (   4,X'S) H   (  41,X'S) 
RIDE C   (   5,X'S) H   (  51,X'S) 
RIDE C   (   8,X'S) H   (  81,X'S) 
RIDE C   (  11,X'S) H   ( 111,X'S) 
RIDE C   (  12,X'S) H   ( 121,X'S) 
RIDE C   (  14,X'S) H   ( 141,X'S) H   ( 142,X'S) 
RIDE C   (  16,X'S) H   ( 161,X'S) 
RIDE C   (  17,X'S) H   ( 171,X'S) 
RIDE C   (  18,X'S) H   ( 181,X'S) 
RIDE C   (  20,X'S) H   ( 202,X'S) H   ( 201,X'S) 
RIDE C   (  22,X'S) H   ( 221,X'S) 
RIDE C   (  23,X'S) H   ( 231,X'S) 
RIDE C   (  24,X'S) H   ( 241,X'S) 
RIDE C   (  30,X'S) H   ( 301,X'S) H   ( 302,X'S) 
RIDE C   (  31,X'S) H   ( 312,X'S) H   ( 311,X'S) 
RIDE C   (  32,X'S) H   ( 321,X'S) H   ( 322,X'S) H   ( 323,X'S) 
RIDE C   (  34,X'S) H   ( 341,X'S) H   ( 342,X'S) 
RIDE C   (  35,X'S) H   ( 352,X'S) H   ( 351,X'S) 
RIDE C   (  36,X'S) H   ( 361,X'S) H   ( 362,X'S) H   ( 363,X'S) 
RIDE C   (  38,X'S) H   ( 382,X'S) H   ( 381,X'S) 
RIDE C   (  39,X'S) H   ( 391,X'S) H   ( 392,X'S) 
RIDE C   (  40,X'S) H   ( 401,X'S) H   ( 402,X'S) H   ( 403,X'S) 
CONTINUE C   ( 140,X'S) H   (1401,X'S) H   (1402,X'S) H   (1403,X'S) 
RIDE C   ( 138,X'S) H   (1382,X'S) H   (1381,X'S) 
RIDE C   ( 139,X'S) H   (1391,X'S) H   (1392,X'S) 
RIDE C   (  42,X'S) H   ( 422,X'S) H   ( 421,X'S) 
RIDE C   (  43,X'S) H   ( 431,X'S) H   ( 432,X'S) 
RIDE C   (  44,X'S) H   ( 441,X'S) H   ( 442,X'S) H   ( 443,X'S) 
RIDE C   (  45,X'S) H   ( 452,X'S) H   ( 451,X'S) 
RIDE C   (  46,X'S) H   ( 461,X'S) H   ( 462,X'S) 
RIDE C   (  47,X'S) H   ( 471,X'S) H   ( 472,X'S) H   ( 473,X'S) 
END                                                                             
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_iucr_refine_instruction_details_restraints
;
NO 
REM   HREST   START (DO NOT REMOVE THIS LINE) 
REM   HREST   END (DO NOT REMOVE THIS LINE) 
DISTANCE 1.441000 , 0.0050000 = O(37) TO C(38) 
DISTANCE 1.525000 , 0.0050000 = C(38) TO C(39) 
DISTANCE 1.539000 , 0.0050000 = C(39) TO C(40) 
ANGLE 109.000000 , 1.000000 = O(37) TO C(38) TO C(39) 
ANGLE 109.000000 , 1.000000 = C(38) TO C(39) TO C(40) 
DISTANCE 1.441000 , 0.0050000 = O(37) TO C(138) 
DISTANCE 1.525000 , 0.0050000 = C(138) TO C(139) 
DISTANCE 1.539000 , 0.0050000 = C(139) TO C(140) 
ANGLE 109.000000 , 1.000000 = O(37) TO C(138) TO C(139) 
ANGLE 109.000000 , 1.000000 = C(138) TO C(139) TO C(140) 
U(IJ)'S  0.0, 0.0010000 = C(38) TO C(138) 
U(IJ)'S  0.0, 0.0010000 = C(39) TO C(139) 
U(IJ)'S  0.0, 0.0010000 = C(40) TO C(140) 
END                                                                             
;