Synthesis of Spiro- and Fused Heterocycles via (4+4) Annulation of Sulfonylphthalide with o-Hydroxystyrenyl Derivatives.
Suresh, Alati; Baiju, Thekke V.; Kumar, Tarun; Namboothiri, Irishi N. N.; The Journal of organic chemistry 84 (2019) 3158–3168; doi:10.1021/acs.joc.8b03039

data_4033944
_publ_section_title
;
 Synthesis of Spiro- and Fused Heterocycles via (4+4) Annulation of
 Sulfonylphthalide with o-Hydroxystyrenyl Derivatives.
;
_journal_issue                   6
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              3158
_journal_page_last               3168
_journal_paper_doi               10.1021/acs.joc.8b03039
_journal_volume                  84
_journal_year                    2019
_chemical_formula_sum            'C30 H19 Br O6 S'
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'CrysAlisPro 1.171.38.43 (Rigaku Oxford Diffraction, 2015)'
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_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.0496P)^2^+0.9637P] where P=(Fo^2^+2Fc^2^)/3'
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_reflns_threshold_expression     'I > 2\s(I)'
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