33131-14-5Relevant articles and documents
Carbonylation of Acetylenes under Water Gas Shift Conditions: A New Method for Synthesis of Furan-2(5H)-ones
Doyama, Kazuo,Joh, Takashi,Onitsuka, Kiyotaka,Shiohara, Tomoo,Takahashi, Shigethosi
, p. 649 - 650 (1987)
Under water gas shift conditions acetylenes are selectively converted into furan-2(5H)-ones with catalysis by rhodium carbonyl clusters.
Furan-2(3H)- and -2(5H)-ones. Part 6. Di-?-methane rearrangement of the α-substituted 4-benzylfuran-2(5H)-one system
Muraoka, Osamu,Tanabe, Genzoh,Higachiura, Mie,Minematsu, Toshie,Momose, Takefumi
, p. 1437 - 1444 (2007/10/02)
The effect of the 'central methane' substitution on the di-?-methane rearrangement in 4-benzyl-2,5-dihydrofuran-2-ones 8a-d was investigated.Significant enhancement of efficiency in the rearrangement leading in high combined yields to two isomeric products, endo-12 and exo-12, is discussed in terms of both the substituent effects at the benzylic carbon and the restrained features of the ring-enrolled ?-system.The origin of the difference in chemoselectivity compared with that of the 3-benzyl counterpart 5 where a photoarylated product 6 resulted upon photoirradiation was also investigated, and was rationalized by postulating a higher reactivity at the β-position of the enone system.
The remarkable cobalt- and phase-transfer-catalyzed carbonylation of epoxy alcohols: A formal triple carbonylation reaction
Alper, Howard,Eisenstat, Amichai,Satyanarayana, Nistala
, p. 7060 - 7061 (2007/10/02)
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