- A concise and efficient synthesis of substituted morpholines
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A simple and efficient method has been developed for the synthesis of substituted morpholines by a sequence of coupling, cyclization, and reduction reactions of easily available amino alcohols and α-halo acid chlorides. Various mono-, di-, and trisubstituted morpholines, spiro morpholines, and ring-fused morpholines, as well as morpholine homologues, were synthesized in good to excellent yields by a single methodology under similar reaction conditions. The method was also used in a multigram synthesis of (3S)-3-methylmorpholine.
- Dugar, Sundeep,Sharma, Amit,Kuila, Bilash,Mahajan, Dinesh,Dwivedi, Sandeep,Tripathi, Vinayak
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supporting information
(2015/02/19)
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- Synthesis of enantiopure 3-substituted morpholines
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Enantiopure 3-substituted morpholines were assembled through ring-opening of a N-2-benzothiazolesulfonyl (Bts) activated aziridine with organocuprates followed by a ring annulation reaction with a vinylsulfonium salt under microwave conditions. Deprotecti
- Bornholdt, Jan,Felding, Jakob,Kristensen, Jesper Langgaard
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supporting information; experimental part
p. 7454 - 7457
(2011/01/04)
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- 2-AMINOBENZOXAZOLE CARBOXAMIDES AS 5HT3 MODULATORS
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Compounds of formulae I, II and III: are disclosed as 5-HT3 inhibitors. The compounds are useful in treating CINV, IBS-D and other diseases and conditions.
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Page/Page column 14; 20
(2008/12/04)
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