Chemische Berichte p. 739 - 746 (1997)
Update date:2022-08-04
Topics:
Zaitseva, Galina S.
Livantsova, Ljudmila I.
Nasim, Mohammed
Karlov, Sergei S.
Churakov, Andrci V.
Howard, Judith A. K.
Avtomonov, Evgeni V.
Lorbcrth, Joerg
Trialkylstannyl esters of tris(2-hydroxyalkyl)amines, N(CH2CHROSnAlk3)3 (9-11) (R = H, Me; Alk = Et, Bu), react with X3GeC(R1)H(R2)COOR3 (12-17) (X = Cl or Br; R1, R2 = H, Me, Ph, SiMe3, COOEt; R3 = Me, Et) to give esters of α-germatranylcarboxylic acids, N(CH2CHRO)3GeQ(R1)MR2)-COOR 3 (1-8), in high yields. The synthesis of esters 12-17 is reported. Esters of α-germatranyldiphenylacetic acid 24 and 25 can be obtained by treatment of diphenylketene with Et3SnOMe to give in situ Et3SnC(Ph2)COOMe (23), followed by reaction with GeCL, to give in situ Cl3GeC(Ph2)COOMe (22) and further reactions with 9 or 11, respectively. Reduction of germatrane 6 with LiAlH4 in diethyl ether leads to cleavage of the germanium-carbon bond with subsequent formation of (2-hydroxyethyl)trimethylsilane. The crystal structures of 3, 6, and 7 are reported. 1-Acyloxygermatranes 26 and 27 are obtained by treatment of 1-methoxygermatrane (28) with diphenyl- and dichloroacetic acid, respectively. VCH Verlagsgesellschaft mbH,.
View MoreContact:+86-571-28186845
Address:Room 1224,Eastcom Mansion,398 Wensan Road,Hangzhou,310013 China
Jiangsu Feymer Technology Co., Ltd.
Contact:+86-512-58110132
Address:Fenghuang Town, Zhangjiagang City, Jiangsu Province, China
Hubei Xinghuo Chemical Co., Ltd.,
Contact:13925817279 13907299441
Address:Xinghuo Fine Chemistry Industrial Park, Xiaochang County, Hubei Province, China
Contact:+86-571-86491666
Address:SHI XIANG ROAD
Hangzhou Yanshan Chemical Co.,Ltd.
Contact:86-571- 87698076
Address:Room 1001, #1 Building, Zhongtian MCC, No.2 Youzhinong, Wenyi West Road, Xihu District, Hangzhou, China
Doi:10.1021/jm00052a008
(1994)Doi:10.1107/S0108270100000731
(2000)Doi:10.1016/S0022-328X(96)06874-X
(1997)Doi:10.1016/S0008-6215(97)00087-6
(1997)Doi:10.1002/ejoc.201500220
(2015)Doi:10.1016/S0040-4039(00)73196-0
(1994)