The Reaction of Diethyl Acetylenedicarboxylate with 4- Methyl-1, 2-diaminobenzene
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چکیده
منابع مشابه
Trimethyl Phosphite Mediated Simple Synthesis of Coumarins and Azacoumarins Through the Reaction of Phenols or Hydroxypyridines and Dimethyl Acetylenedicarboxylate (DMAD) or Diethyl Acetylenedicarboxylate (DEAD)
Protonation of the reactive intermediate produced in the reaction between trimethyl phosphite and dimethyl acetylenedicarboxylate or diethyl acetylenedicarboxylate by resorcinol, 5-methylresorcinol, 2,5-dihydroxyacetophenone, 4-chloro-2-methylphenol, 4-chloro-3,5-dimethy-lphenol, 4-hydroxypyridine, 2-hydroxypyridine, 3-hydroxypyridine, or 8-hydroxyquinoline leads to vinylphosphonium salts,...
متن کامل(1R*,2R*,3S*,4R*)-Diethyl 4-hydroxy-4-methyl-2-(4-methylphenyl)-6-oxocyclohexane-1,3-dicarboxylate
The title compound, C20H26O6, is chiral and crystallizes as a racemate: the relative configuration of the stereogenic centres is 1R*,2R*,3S*,4R*. The cyclo-hexane ring has a chair conformation. The ethyl fragment of the eth-oxy-carbonyl group in the 3-position is disordered over two sets of sites in a 0.650 (6):0.350 (6) ratio. The hy-droxy group acts as a bifurcated hydrogen-bond donor, formin...
متن کاملREACTION OF 4-METHYL- 1 2,4-TRIAZOLINE- 3,5-DIONE WITH DI AND TRI-SUBSTITUTED STYRENES S.E. Mallakpour* and G.B. Butler**
2,4,6-Triisopropylstryrene was synthesized in a single step via the Witting Reaction from the corresponding aldehyde. The reaction of three styrene's derivatives, 2,6-dimethylstyrene, 2,4,6-trimethylstyrene, and 2,4,6- triisopropylstyrene with 4-methyl-l,2,4-triazoline-3,5-dion(M eTD) was investigated. These reactions are instantaneous at room temperature and lead to the formation of 2: 1 ...
متن کاملDiethyl 4-hydroxy-4-methyl-6-oxo-2-phenylcyclohexane-1,3-dicarboxylate
In the title mol-ecule, C(19)H(24)O(6), the cyclo-hexa-none ring adopts a chair conformation. The dihedral angle between the phenyl ring and the best plane through the six atoms of the cyclo-hexa-none ring is 89.68 (7)°. In the crystal structure, mol-ecules are linked via pairs of inter-molecular O-H⋯O hydrogen bonds into centrosymmetric dimers and these dimers are connected by C-H⋯O inter-acti...
متن کاملrac-Diethyl 6-hydroxy-4-[(2-hydroxyethyl)amino]-6-methyl-2-phenylcyclohex-3-ene-1,3-dicarboxylate
The title compound, C(21)H(29)NO(6), is chiral with three stereogenic centres. The crystal is a racemate and consists of enanti-omeric pairs with the relative configuration rac-(2R*,3S*,4R*). The ethyl fragment of the eth-oxy-carbonyl group at position 1 is disordered in a 0.60:0.40 ratio. The crystal packing displays inter-molecular O-H⋯O hydrogen bonding. An intra-molecular N-H⋯O hydrogen bon...
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1962
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.83.2_161