Helvetica Chimica Acta p. 262 - 270 (1987)
Update date:2022-07-30
Topics:
Trifonov, Latchezar S.
Oharovats, Alexander S.
Allenic acids are found to add to dicyclohexylcarbodiimide affording, in the presence of Et2NH, the 4H-1,3-oxazin-4-ones 5 via 4.Under neutral conditions, they add to diaryl- or pyridyl(cyclohexyl)carbodiimides and triphenylketene imine to give the corresponding tricyclo(5.2.2.0 1,5)undeca-4,4,10-trien-3-ones 7,8,9, and 12.The allenic phenyl ester 13a dimerises, on heating in a (2+2) head-to-head fashion, to 14 but fails to undergo intramolecular Diels-Alder cyclization to 15.
View MoreBrightGene Bio-Medical Technology Co., Ltd.
website:https://en.bright-gene.com/
Contact:+86-512-62551801
Address:Building C25 - C31, No. 218 Xinghu Road, Suzhou Industrial Park, Suzhou, Jiangsu, China.
Huaian Double Win Chemicals Co.,Ltd.
Contact:+86-13511538872
Address:Blk 43,Greenland Century Town,Huaian District, Huaian City,Jiangsu Province,China
Zhejiang Chemline International Co., Ltd.
Contact:+86-571-88062298
Address:Hengdian Industry Area, Dongyang, Zhejiang, China
Changsha Yonta Industry Co., Ltd.
Contact:+ 86-731-8535 2228
Address:Rm.1717, North Bldg., No.368, East 2nd Ring Road(2nd Section)
Nanjing Samwon International Limited
Contact:+86-25-84873444
Address:1108, BLDG B, New Century Plaza, No 1, South Taiping Rd.,
Doi:10.1023/A:1011398215836
(2001)Doi:10.1055/s-0034-1380450
(2015)Doi:10.1007/s00044-004-0021-y
(2004)Doi:10.1021/ja00890a033
(1963)Doi:10.1016/S0040-4020(01)87827-3
(1990)Doi:10.1134/S1070428015020190
(2015)
