42074-16-8Relevant articles and documents
Preparation method of chiral morpholine compound
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Paragraph 0058; 0060; 0063; 0073; 0082; 0090, (2018/10/11)
The invention provides a preparation method of a chiral morpholine compound. With chiral ethylene oxide as a raw material, the preparation method comprises the steps of ring opening, cyclization and deprotection reaction to obtain the chiral 2-substituted morpholine compound. The preparation process is simple and environmentally friendly, has mild reaction conditions, is free of irritation or allergens, has higher total yield and good safety and is suitable for industrial amplification.
Sodium borohydride-boron trifluoride ethereate, a convenient and efficient reagent for the reduction of amides
Sengupta, Sreela,Sahu, Devi P,Chatterjee, Sunil K
, p. 285 - 287 (2007/10/02)
Sodium borohydride-boron trifluoride ethereate has been employed as a reducing agent for the conversion of amides into amines, the reducing species being diborane generated in situ.This method successfully reduces primary, secondary and tertiary amides, lactams and chiral diketopiperazines, in moderate to high yields.An unusual ring cleavage is observed in the reduction of the pyrroloquinazolin-1-one (7a) resulting in the formation of benz-1,6-diazonine (7b).