Natural kaolinitic clay: A mild and efficient catalyst for the tetrahydropyranylation and trimethylsilylation of alcohols

被引:47
作者
Upadhya, TT
Daniel, T
Sudalai, A
Ravindranathan, T
Sabu, KR
机构
[1] NATL CHEM LAB,DIV ORGAN CHEM,PUNE 411008,MAHARASHTRA,INDIA
[2] REG RES LAB,CLAY MINERAL DIV,TRIVANDRUM,KERALA,INDIA
关键词
D O I
10.1080/00397919608004777
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Natural kaolinitic clay possessing transition metals such as Fe, Ti in its lattice has been found to catalyze efficiently the protection of a variety of alcohols with 2,3-dihydro-4H-pyran (DHP) and hexamethyldisilazane (HMDS) at ambient conditions.
引用
收藏
页码:4539 / 4544
页数:6
相关论文
共 16 条
[1]   SORPTION AND MOLECULAR-SIEVE PROPERTIES OF CLAYS AND THEIR IMPORTANCE AS CATALYSTS [J].
BARRER, RM .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1984, 311 (1517) :333-352
[2]  
BONGINI A, 1979, SYNTHESIS-STUTTGART, P618
[3]  
CORNELIS A, 1994, SYNLETT, P155
[4]   HEIGHTENED SELECTIVITY IN AROMATIC NITRATIONS AND CHLORINATIONS BY THE USE OF SOLID SUPPORTS AND CATALYSTS [J].
DELAUDE, L ;
LASZLO, P ;
SMITH, K .
ACCOUNTS OF CHEMICAL RESEARCH, 1993, 26 (12) :607-613
[5]  
GREENE TW, 1991, PROTECTIVE GROUPS OR
[6]  
HOYER S, 1986, SYNTHESIS-STUTTGART, P655
[7]  
JAYACHANDRAN B, UNPUB J CHEM SOC CHE
[8]  
Kocienski P.J., 1994, PROTECTING GROUPS
[9]  
KUMAR P, 1993, SYNTHESIS-STUTTGART, P1069
[10]  
KUNZ H, COMPRHENSIVE ORGANIC, V6, P631