ChemInform Abstract: Stereoselective Amine Addition of Six-Membered Cyclic Nitronates Promoted by Silyl Triflate.

ChemInform ◽  
2014 ◽  
Vol 45 (6) ◽  
pp. no-no
Author(s):  
Andrey A. Mikhaylov ◽  
Alexander D. Dilman ◽  
Yulia A. Khomutova ◽  
Dmitry E. Arkhipov ◽  
Alexander A. Korlyukov ◽  
...  
Keyword(s):  
Amine Addition

scholarly journals The effect of protein degradation products in grass silages on feed intake and intake behaviour in sheep

1995 ◽  
Vol 73 (1) ◽  
pp. 51-64 ◽  
Author(s):  
M. Van Os ◽  
J.P. Dulphy ◽  
R. Baumont
Keyword(s):  
Treatment Effects ◽  
Degradation Products ◽  
Latin Square ◽  
Dietary Treatment ◽  
Intake Rate ◽  
Once Daily ◽  
Rumen Ph ◽  
Chewing Efficiency ◽  
Amine Addition ◽  
Intake Regulation

The effects of NH3 and amines on grass-silage intake, intake behaviour and rumen characteristics were studied in sheep. From a single sward, two direct-cut grass silages were prepared, either untreated (WAS) or with 4·51 formic acid/tonne (FAS). Four experimental diets: WAS, FAS, FAS with addition of 2·9 g NH3/kg DM (FAS + N) and FAS with 2·8 g amines/kg DM (FAS + A), were offered ad lib. once daily to four rumen-cannulated wethers in a 4 × 4 Latin square design. Daily DM intake (DMI) tended to be influenced by dietary treatment (P = 0·09). Compared with FAS, DMI was lower for WAS. Addition of NH3 did not alter DMI, whereas amine addition slightly lowered daily DMI. Reduced DMI resulted from lower intake rates during both the principal meal and the subsequent small meals. Lower initial intake rate during the principal meal suggested reduced palatability of WAS and FAS + A. Amines and NH3, however, did not influence chewing efficiency. No treatment effects were observed on total rumen pool size, DM and neutral-detergent fibre content. Furthermore, NH3, and amines did not alter rumen pH, NH3, and volatile fatty acid concentrations to the extent that they could act on chemostatic intake regulation. Amine addition, however, lowered osmolality of the rumen liquid. No treatment effects on rumen motility were observed. In conclusion, daily DMI was not reduced by the addition of NH3, suggesting that NH3per se is not the causal factor in the negative correlations between silage NH3 content and intake observed by other authors. Amines, however, tended to reduce DMI only by their effect at the oro-pharyngeal level of intake control.

Stereoselective Amine Addition to Six-Membered Cyclic Nitronates Promoted by Silyl Triflate

2013 ◽  
Vol 2013 (25) ◽  
pp. 5670-5677 ◽  
Author(s):  
Andrey A. Mikhaylov ◽  
Alexander D. Dilman ◽  
Yulia A. Khomutova ◽  
Dmitry E. Arkhipov ◽  
Alexander A. Korlyukov ◽  
...  
Keyword(s):  
Amine Addition

Stereoselective synthesis of N-heterocycles through amine addition to nitroalkenes

2013 ◽  
Vol 11 (12) ◽  
pp. 1917 ◽  
Author(s):  
Lekh Nath Gautam ◽  
Qiaoyi Wang ◽  
Novruz G. Akhmedov ◽  
Jeffrey L. Petersen ◽  
Xiaodong Shi
Keyword(s):  
Stereoselective Synthesis ◽  
Amine Addition

Borohydride reduction of Δ1,9 2-octalone: Cation influence and amine addition effects

1981 ◽  
Vol 22 (10) ◽  
pp. 941-944 ◽  
Author(s):  
E. D'Incan ◽  
A. Loupy ◽  
A. Maïa
Keyword(s):  
Borohydride Reduction ◽  
Amine Addition

An MO study of regioselective amine addition to ortho-quinones relevant to melanogenesis

Tetrahedron ◽  
2006 ◽  
Vol 62 (20) ◽  
pp. 4884-4891 ◽  
Author(s):  
Edward J. Land ◽  
Christopher A. Ramsden ◽  
Patrick A. Riley
Keyword(s):  
Amine Addition
Sign in / Sign up

Export Citation Format

Share Document