نتایج جستجو برای: Alkyl Group
تعداد نتایج: 991429 فیلتر نتایج به سال:
چکیده ندارد.
in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...
Addition of terpyridine to (TMEDA)Ni(CH3)2 results in the high-yield formation of (terpyridyl)NiMe (3). This NiI organometallic complex was found to be capable of transferring its methyl group to iodocyclohexane to produce methylcyclohexane in high yield. Compound 3 can also serve as an initiator for the catalytic cross-coupling of alkyl electrophiles performed under Negishi-like conditions.
مشتقات بنزوتیازول که در روی کربن شمار? 2 خود دارای استخلاف هستند، به خاطر چارچوب ساختاری شان بسیار جالب توجه می باشند و جزء دست? مهمی از ساختارهای دو حلقه ای ارزشمند در شیمی آلی و داروسازی هستند. نیم? بنزوتیازول در 2- آریل بنزوتیازول ها نقشی اساسی در ترکیباتی دارد که به طور وسیع و گزینشی خاصیت ضد توموری دارند. لازم به ذکر است که ترکیباتی که دارای چنین حلقه های هتروسیکلی می باشند در داروسازی به ...
The purpose of this study was to determine whether acetylation of the sulfonamide drugs in the human body could be prevented by substituting a simple alkyl radicle on the amino group of the drug without otherwise impairing the efficiency of its therapeutic action. Methyl and dimethyl substituted sulfanilamides were made and investigated from a pharmacological and therapeutic viewpoint. Because ...
چکیده ندارد.
Poly(L-lactide) (PLLA) oligo-esters with α-hydroxyl-ω-alkyl (alkyl = −CH2−[CH2−CH2]n−CH3, where n = 1, 2, 4, 5, 6, 7, 8, 9, and 10) end groups were synthesized by ring-opening polymerization of L-lactide (L-LA) catalyzed by tin(II) 2ethylhexanoate Sn(Oct)2 in the presence of aliphatic alcohols as initiators (HO−CH2−[CH2−CH2]m−CH3, where m = 1, 2, 4, 5, 6, 7, 8, 9, and 10). High yields (∼ 62 to ...
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