ÜberN,N′-Dimethyl-[tetrahydro-γ,γ′-dikollidyl]
نویسندگان
چکیده
منابع مشابه
2-amino-4-(4-chlorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile.
The supramolecular structure of the title compound, C(18)H(17)ClN(2)O(2), is determined by the intersection of two chains formed by N-H...O and N-H...N hydrogen bonds, forming a two-dimensional sheet.
متن کاملγγ cross - sections and γγ colliders 1
We summarize the predictions of different models for total γγ crosssections. The experimentaly observed rise of σγγ with √ sγγ, faster than that for σp̄p, σγp is in agreement with the predictions of the Eikonalized Minijet Models as opposed to those of the Regge-Pomeron models. We then show that a measurement of σγγ with an accuracy of / 8 − 9%(6 − 7%) is necessary to distinguish among different...
متن کاملThe processes γγ → γγ , γZ , ZZ
The Standard Model contributions to the processes γγ → γγ, γZ and ZZ at sufficiently high energies, are found to be helicity conserving and almost purely imaginary. This is due to the W-loop contribution, which is much bigger than the fermionic ones at such energies. Thus the structure of these amplitudes acquires an impressive simplicity at high energies. Nothing like this appears in other pro...
متن کاملAn efficient one-pot synthesis of dimethyl 1-(Aryl)-5-cyano-4-(cyclohexylamino)-1,2,5,6-tetrahydro-6-oxopyridine-2,3-dicarboxylate derivatives
Abstract: The reactive 1:1 intermediate produced in the reaction between cyclohexyl isocyanide and electron- deficient acetylenic esters or dimethyl acetylene dicarboxylate was trapped by 2-cyano-N-(Aryl) acetamides to provides highly functionalized oxopyridine (potential synthetic and pharmaceutical interest ) in acetonitrile under mild reaction conditions at ambient temperature after 24 h ...
متن کامل9-Furfurylidene-2,3-dimethyl-6,7,8,9-tetrahydro-4H-thieno[2′,3′:4,5]pyrimidino[1,2-a]pyridin-4-one
The title compound, C(17)H(16)N(2)O(2)S, was obtained by condensation of 2,3-dimethyl-thieno[2',3':4,5]pyrimidino[1,2-a]pyridin-4-one with furfural in the presence of sodium hydroxide. One of the methyl-ene groups of the tetra-hydro-pyrido ring is disordered over two positions in a 0.87 (1):0.13 (1) ratio. The thieno[2,3-d]pyrimidin-4-one unit and the furan ring are both planar (r.m.s. deviatio...
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ژورنال
عنوان ژورنال: Berichte der deutschen chemischen Gesellschaft (A and B Series)
سال: 1922
ISSN: 0365-9488
DOI: 10.1002/cber.19220550526