Synthesis and characterization of monoaryl esters of L-tartaric acid and their process for fries rearrangement

被引:2
|
作者
Khan, Sher Wali [1 ,2 ]
Zaidi, Javaid Hussain [2 ]
Khan, Gul Shahzada [1 ]
Rashid, Haroon Ur [3 ]
Umar, Muhammad Naveed [4 ]
Jan, Abdul Khaliq [1 ]
Galan, Carman [5 ]
Haddow, Mairi [5 ]
机构
[1] Shaheed BB Univ Sheringal, Dept Chem, Dir Upper, Kpk, Pakistan
[2] Quaid I Azam Univ, Dept Chem, Islamabad, Pakistan
[3] Sarhad Univ Sci & Informat Technol, Dept Chem, Peshawar, Kpk, Pakistan
[4] Univ Malakand, Dept Chem, Chakdara, Kpk, Pakistan
[5] Univ Bristol, Sch Chem, Bristol, Avon, England
关键词
L-Tartaric acid; Protection; Monoaryl esters; Fries rearrangement; EFFICIENT ASYMMETRIC OXIDATION; SIMMONS-SMITH REACTION; ALLYLIC ALCOHOLS; ALLYLBORATION REACTION; CHIRAL AUXILIARY; COMPLEXES; SULFOXIDES; SULFIDES; ALDEHYDES; TARTRATE;
D O I
10.1007/s13738-015-0657-1
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Chiral protected monoaryl esters (2a-2h) were synthesized from monoester of l-tartaric acid, having two asymmetric centers and C2 axis of symmetry. l-tartaric acid was protected and partially hydrolyzed to give the corresponding monoester. Monoester upon treatment with different substituted phenols gave desired monoaryl esters (2a-2h). Fries rearrangement of monoaryl esters was then tried under various conditions by using different Lewis acids. All the compounds were purified and characterized by using spectroscopic techniques like IR, H-1-NMR, C-13-NMR, HRMS-ESI, and elemental analysis. The structure of compound 2e was obtained by X-ray crystallography.
引用
收藏
页码:1819 / 1827
页数:9
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