Palladium-Catalyzed Tandem Carbene Migratory Insertion and Intramolecular Cyclization: Synthesis of Chromeno[4,3-b]chromene Compounds.
Shang, Xue Song; Li, Nian Tai; Siyang, Hai Xiao; Liu, Pei Nian; The Journal of organic chemistry 80 (2015) 4808–4815; doi:10.1021/acs.joc.5b00500

data_4036199
_publ_section_title
;
 Palladium-Catalyzed Tandem Carbene Migratory Insertion and Intramolecular
 Cyclization: Synthesis of Chromeno[4,3-b]chromene Compounds.
;
_journal_issue                   9
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              4808
_journal_page_last               4815
_journal_paper_doi               10.1021/acs.joc.5b00500
_journal_volume                  80
_journal_year                    2015
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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^)+(0.0783P)^2^+1.4019P] where P=(Fo^2^+2Fc^2^)/3'
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