Fischer indole synthesis of the indoloquinoline alkaloid: cryptosanguinolentine
摘要:
A new synthesis of an indoloquinoline alkaloid, isolated from Cryptolepis sanguinolenta, is described using a Fischer indole cyclization. 4-Hydroxy-1-methyl-1H-quinolin-2-one reacted directly with phenylhydrazine hydrochloride to give the indoloquinoline, which was reacted with POCl3 and then the resultant halide hydrogenolysed to give cryptosanguinolentine. (c) 2005 Elsevier Ltd. All rights reserved.
Fischer indole synthesis of the indoloquinoline alkaloid: cryptosanguinolentine
摘要:
A new synthesis of an indoloquinoline alkaloid, isolated from Cryptolepis sanguinolenta, is described using a Fischer indole cyclization. 4-Hydroxy-1-methyl-1H-quinolin-2-one reacted directly with phenylhydrazine hydrochloride to give the indoloquinoline, which was reacted with POCl3 and then the resultant halide hydrogenolysed to give cryptosanguinolentine. (c) 2005 Elsevier Ltd. All rights reserved.
Fischer indole synthesis of the indoloquinoline alkaloid: cryptosanguinolentine
作者:T. Dhanabal、R. Sangeetha、P.S. Mohan
DOI:10.1016/j.tetlet.2005.04.122
日期:2005.6
A new synthesis of an indoloquinoline alkaloid, isolated from Cryptolepis sanguinolenta, is described using a Fischer indole cyclization. 4-Hydroxy-1-methyl-1H-quinolin-2-one reacted directly with phenylhydrazine hydrochloride to give the indoloquinoline, which was reacted with POCl3 and then the resultant halide hydrogenolysed to give cryptosanguinolentine. (c) 2005 Elsevier Ltd. All rights reserved.