ORGLIST: PIGMENT YELLOW 101 (help)

Date view Thread view Subject view Author view Attachment view

From: Mathews Jose K. (mathews_jose_k$##$yahoo.co.in)
Date: Wed Mar 16 2005 - 02:33:25 EST


HI ALL,
 
Iím synthesizing PIGMENT YELLOW 101 (itís the aldazine of 2-hydroxy naphthaldehyde) so I go by the route 2-naphthol to 2-hydroxy naphthaldehyde then the condensation 2 moles of the aldhehyde with hydrazine hydrate to get the pigment.

For the sysnthesis of aldehyde im getting only 45% yield through RT reaction (chloroform and sodium hydroxide) Can anybody tell a better route where no gas is used and no cynide is used. Thx in advance.

Any patents on pigment yellow 101 is also a nice reference

 

MATHEWS JOSE

MUMBAI


Yahoo! India Matrimony: Find your life partneronline.

_______________________________________________
ORGLIST - Organic Chemistry Mailing List
Website / Archive / FAQ: http://www.orglist.net
To post a message (TO EVERYBODY) send to everybody$##$orglist.net
To unsubscribe, send to everybody-request$##$orglist.net the message: unsubscribe your_orglist_password your_address
List coordinator: Joao Aires de Sousa (coordinator$##$orglist.net)



Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.4 : Thu Feb 18 2010 - 16:58:09 EST