By Alfredo Ricci
Right here, the most very important practical team in natural chemistry is mentioned in a single convenient quantity. The monograph covers its program -- from typical items to artificial prescribed drugs -- detailing complicated syntheses utilizing the amino team as templates and glossy innovations focussing at the advent of the amino crew. A definitive must-have for each chemist.
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Additional info for Amino Group Chemistry: From Synthesis to the Life Sciences
The sulfonylimido osmium 31 is proposed as the key species. 43) . 44). The N-chloro benzyloxycarbamate salt 32 is prepared in situ from benzylcarbamate, NaOH, and tert-butyl hypochlorite . 45) [53a]. 3 Aziridination of Alkenes Aziridines can be used as synthetic intermediates in the preparation of nitrogencontaining compounds through ring-opening and ring-expansion reactions. 44 Aminohydroxylation of alkenes with N-halocarbamate salt (32). 45 Application of aminohydroxylation with Nhalocarbamate salt 32 to the synthesis of ustiloxin D.
This reagent undergoes Mitsunobu alkylation with both primary and secondary alcohols to afford the corresponding bis-SES imides. These imides can be selectively cleaved to the mono-SES-protected amines by treatment with CsF. In addition, one-pot monodeprotection/N-alkylation can be carried out by successive treatment with CsF and an alkylating agent such as benzyl bromide, affording Nalkyl mono-SES amino derivatives . 73) . The resulting N-alkyl-1,2,4-dithiazolidine-3,5-diones are readily converted into urethanes via isocyanates by treatment with triphenylphosphine and alcohol.
The ﬁlter cake was washed with CH2Cl2 (2 × 5 mL) and the combined extracts were concentrated under reduced pressure. 36 mmol) in 71% yield. 55 mmol) in benzene. 65 mmol) was added. The suspension quickly turned orange after the addition of PhI(OAc)2 and was allowed to warm slowly to 25 °C over 2 h. After 6 h, the reaction mixture was diluted with CH2Cl2 (10 mL) and ﬁltered through a Celite pad. 43 mmol) in 85% yield. 8 Transition Metal-Nitride Complexes There are many reports on the generation and the characterization of transition metal/nitrido complexes , some of which have been applied to stoichiometric nitrogen atom transfer reactions to organic molecules.