Straightforward access to novel indolo[2,3-b]indoles via aerobic copper-catalyzed [3+2] annulation of diarylamines and indoles.
Liang, Taoyuan; Gong, Lingzhen; Zhao, He; Jiang, Huanfeng; Zhang, Min; Chemical communications (Cambridge, England) 56 (2020) 2807–2810; doi:10.1039/d0cc00178c

data_7125883
_publ_section_title
;
 Straightforward access to novel indolo[2,3-b]indoles via aerobic
 copper-catalyzed [3+2] annulation of diarylamines and indoles.
;
_journal_issue                   18
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              2807
_journal_page_last               2810
_journal_paper_doi               10.1039/d0cc00178c
_journal_volume                  56
_journal_year                    2020
_chemical_formula_moiety         'C33 H25 N3'
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_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-02-25 deposited with the CCDC.	2020-01-30 downloaded from the CCDC.
;
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_diffrn_reflns_theta_min         3.740
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0654P)^2^+0.7742P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1387
_refine_ls_wR_factor_ref         0.1594
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_reflns_number_gt                3890
_reflns_number_total             5748
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0cc00178c2.cif
_cod_data_source_block           1
_cod_depositor_comments          'Adding full bibliography for 7125883.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7125883
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              26186