Monatshefte fur Chemie p. 1157 - 1172 (1997)
Update date:2022-08-03
Topics:
Bogdanowicz-Szwed
Palasz
The hetero-Diels-Alder reaction of 3-aryl-2-benzoyl-2-propenenitriles 1a-d with enol ethers 2a-c yields cis/trans diastereoisomers of 2-alkoxy-4,6-diaryl-3,4-dihydro-2H-pyran-5-carbonitriles 3 and 4 in 79-98% yield. The similar reaction of 1a-c with cyclic enol ether 5 affords diastereoisomeric cycloadducts 6 and 7 with cis annulated pyran rings. Reaction of 3 with sulfuric acid leads to 2-hydroxy-3,4-dihydro-2H-pyran-5-carbonitriles 8 and 9.
View MoreContact:+86-574-89075960
Address:#100 Xiang Yun Road, New High tech area, Ningbo, China
Hangzhou Donglou Bio-nutrient Co., Ltd.
Contact:+86-571-82225795,13967112289
Address:Louta Town, Xiaoshan,Hangzhou,Zhejiang
Contact:+86-571-86491666
Address:SHI XIANG ROAD
Chengdu King-tiger Pharm-chem. Tech. Co., Ltd
Contact:028-85317716
Address:Tianfu Life Science Park, No. 88 South Keyuan Road, Gaoxin District, Chengdu City, Sichuan Province, PRC.
Shanghai better-in Medical Technology Co.,LTD.
Contact:+86-21-38921049
Address:Lane 720 zhangjianggaoke cailun road, Pudong, Shanghai, room 513
Doi:10.1021/jm200900q
(2011)Doi:10.1016/0008-6215(83)84014-2
(1983)Doi:10.1021/jm0100077
(2001)Doi:10.1021/jm051261s
(2006)Doi:10.1021/ol051286l
(2005)Doi:10.1039/c3dt52503a
(2014)