Chemistry is traditionally divided into organic and inorganic chemistry. SDS of cas: 569-31-3, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 569-31-3
Degradation of (-)-alpha-narcotine (5), (-)-beta-narcotine (6), and (-)-beta-hydrastine (7) with ethyl chloroformate (ECF) affords the chloro-urethans 9 and 18, respectively. Diastereomer 9-I is easily hydrolyzed to the hydroxy-urethan 10, whilst 18 is converted to the methoxy-analogue 19. The stilbene lactone 11 is obtained from 9-I by treatment with DBU, the analogous stilbene 17 arises already when 7 is reacted with ECF. – Hydroxy-urethan 10 – a phenylogous aldol – is split by OH- to aldehyde 13 and to meconine (14). LiAlH4-reduction of 10 yields the stereochemically homogenous triol 15, which is cyclized to diastereomers of the 3-phenyl-isochroman 16 under acidic conditions.
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Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H3158O – PubChem