British Abstracts: Pure chemistry and physiology. ser. A1941 |
Từ bên trong sách
Kết quả 1-3 trong 92
Trang 33
... ester of methylated pectic acid and isolation of the methyl ester of 2 : 3 - dimethyl - p - methylgalactopyruronoside . ( Miss ) S. Luckett and F. Smith ( J.C.S. , 1940 , 1506-1511 ; cf. preceding abstract ) .- Prolonged boiling of the Me ...
... ester of methylated pectic acid and isolation of the methyl ester of 2 : 3 - dimethyl - p - methylgalactopyruronoside . ( Miss ) S. Luckett and F. Smith ( J.C.S. , 1940 , 1506-1511 ; cf. preceding abstract ) .- Prolonged boiling of the Me ...
Trang 69
... ester ( VI ) , b.p. 162-165 ° / 15 mm . , is very stable towards boiling Ac2O or HCO2H . It is converted by SOCI , or PCI , into a very unstable Cl - ester , better obtained from ( V ) and MeOH - HCİ . It is almost unaffected by ...
... ester ( VI ) , b.p. 162-165 ° / 15 mm . , is very stable towards boiling Ac2O or HCO2H . It is converted by SOCI , or PCI , into a very unstable Cl - ester , better obtained from ( V ) and MeOH - HCİ . It is almost unaffected by ...
Trang 135
... ester by CH , N , and MeOH - H , SO ; the ester is inverted by prolonged contact with NaOMe - MeOH at room temp . Addition of PhBr in CS , to ( CMe - CO ) , O and AlBr , in CS , leads to cis - ẞ - p - bromobenzoyl - a - methylcrotonic ...
... ester by CH , N , and MeOH - H , SO ; the ester is inverted by prolonged contact with NaOMe - MeOH at room temp . Addition of PhBr in CS , to ( CMe - CO ) , O and AlBr , in CS , leads to cis - ẞ - p - bromobenzoyl - a - methylcrotonic ...
Nội dung
General Physical and Inorganic Chemistry I II Subatomics | 1 |
Molecular Structure | 3 |
Crystal Structure | 5 |
39 phần khác không được hiển thị
Ấn bản in khác - Xem tất cả
Thuật ngữ và cụm từ thông dụng
absorption Acad acid activation energy activity adsorbed adsorption alloys Amer analysis approx ation atoms bands calc catalyst Chem chemical CO₂ coeff colloidal compounds Compt concn const containing crystal curves decomp decreases deposits described determined deuterons diffraction diffusion discussed effect electrolytes electron emission energy entropy equation equilibrium EtOH ferromagnetic films formation formed glass H₂ H₂O heat hydrogen hysteresis increases indicate Instr intensity ionisation ions Kolloid lattice layer liquid magnetic Me.v measured mesons mesotrons metals method minerals mixtures monoclinic neutrons observed obtained oxidation particles PhOH Phys Physical Chem Physical Rev polarisation potential presence pressure Proc protons quartz radioactive reaction Russ salts Shurn solid solid solutions sols solubility solutions solvent spectra spectrum structure surface temp theory thermal titration unit cell vals vapour velocity viscosity X-ray