Copper(i)-catalyzed enantioselective hydroboration of cyclopropenes: facile synthesis of optically active cyclopropylboronates
Tian, Bing; Liu, Qiang; Tong, Xiaofeng; Tian, Ping; Lin, Guo-Qiang; Org. Chem. Front. 1 (2014) 1116–; doi:10.1039/C4QO00157E

data_1553009
_publ_section_title
;
 Copper(i)-catalyzed enantioselective hydroboration of cyclopropenes:
 facile synthesis of optically active cyclopropylboronates
;
_journal_issue                   9
_journal_name_full               'Org. Chem. Front.'
_journal_page_first              1116
_journal_paper_doi               10.1039/C4QO00157E
_journal_volume                  1
_journal_year                    2014
_chemical_formula_sum            'C22 H18 Br2 O4'
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_diffrn_measurement_method       'phi and omega scans'
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_diffrn_reflns_av_R_equivalents  0.0313
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_exptl_crystal_size_max          0.211
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_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
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_refine_ls_matrix_type           full
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_refine_ls_number_reflns         1980
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.0710P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_total             1980
_reflns_threshold_expression     'I > 2\s(I)'
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