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PTC Tip
of the Month - PTC
Books
Here are some options if you want to buy books on PTC for your library. In 2004,
PTC Communications will publish the book "Industrial
Phase-Transfer Catalysis" by Halpern, Sirovski and Crick. It will be
the first book on industrial PTC and it will be announced on the PTC Tip of the
Month. Other PTC books which we use at PTC Organics include: "Phase-Transfer
Catalysis: Fundamentals, Applications and Industrial Perspectives"
by Starks, Liotta and Halpern (Chapman and Hall 1994; this is the #1 selling PTC
book); "Quaternary Ammonium Salts" by
Jones (Elsevier Science 2000; this is a new book with many procedures but little
or no theory or guidelines); "Handbook of
Phase-Transfer Catalysis" a collection of 16 very good essays edited
by Sasson and Neumann (Kluwer 1997); "Phase Transfer
Catalysis: Selected Problems and Applications" by Goldberg (Gordon
and Breach 1992); "Phase-Transfer Catalysis"
by Dehmlow and Dehmlow (VCH 1993; this book has a lot of references) and the
Fluka Compendium of PTC reactions in three volumes edited by Weber which covers
thousands of PTC references through 1989.
Please forward this PTC Tip of the Month to your colleagues and encourage them to subscribe
click here for reader comment to the May 2003 PTC Tip of the Month
PTC
Seminar via the Web & Telephone - October
1, 2003
PTC Organics will conduct the PTC seminar entitled "Reducing Cost of Manufacture of Organic
Chemicals Using Phase-Transfer Catalysis" on October 1, 2003 at 09:00 US
eastern standard time. The seminar will be conducted using the internet and your
telephone and can be accessed from anywhere in the world. Register by contacting
Marc Halpern at tel 856-222-1146 (US) or by E-mail
to receive your password, telephone number to call and other instructions.
Registration is free before September 1, 2003 and is limited to one access point per site (it is recommended that you use a speakerphone and projector connected to your computer for multiple participants). A total of 20 access points will be available. Preference will be given to multi-participant access points. PTC Organics reserves the right to determine the participating companies which will be selected from the industrial customers or potential industrial customers of PTC Organics.
PTC Reaction of the Month - Phosgene
reaction in the presence of water
Here is another example of using phosgene in the presence of water at a basic pH
while achieving high yield by McCloskey, P.; Burnell, T.; Brunelle, D.; Shanklin,
E.; Smigelski, P.; Kailasam, G.; (General Electric) US Patent 6,420,588, July
16, 2002. In the past, we have reviewed other GE patents which use PTC to
significantly reduce excess phosgene by replacing the use of triethylamine
catalyst with phase-transfer catalysis. There are hundreds of PTC reactions
which use water-sensitive compounds in the presence of water and if you would
like to achieve high yield using water-sensitive compounds and low excess
reactant, please contact PTC Organics by E-mail,
website, telephone (+1
856-222-1146) or fax (+1 856-222-1124).
PTC Breakthrough Process Screening
PTC Organics offers PTC
Breakthrough Process Screening for rapid and highly effective evaluation of breakthrough
phase-transfer catalysis processes. As the world leader in industrial
phase-transfer catalysis, PTC Organics develops
breakthrough high-performance low-cost PTC processes. Contact Marc
Halpern at PTC Organics by E-mail,
website, telephone (+1
856-222-1146) or fax (+1 856-222-1124).
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Before
performing any PTC reactions read this important message
Organic chemical reactions are inherently dangerous. Moreover, phase-transfer
catalysis may provide rate and other enhancements which can intensify associated
hazards. Under no circumstances should anyone perform any procedure on any scale
based in whole or in part on any of the contents of this E-mail before
thoroughly establishing safe operating procedures and performing a full and
competent hazardous operations analysis with the participation of qualified
technical personal trained in chemical, engineering, safety, industrial hygiene
and environmental disciplines and sciences.
Policy
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will not be sold, rented or transferred and will be used only by PTC
Communications, Inc. and PTC Organics, Inc. to provide information related to
Phase-Transfer Catalysis. PTC Communications, Inc. reserves the right to
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managers.
PTC Tip of the Month #9 - June 2003
Copyright 2003 PTC Communications, Inc.